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Self Seal Boxes

S1 Self Seal Ecommerce Shipping Box 205 x 150 x 100mm | Peel & Seal Postal Box

205 x 150 x 100 mm

Regular price
£40.00

Amount of Product

Return information

Returns and Refund Policy
Below you will find our returns policy – which is all about YOU.

We want you to be 100% satisfied with any order placed with us. Therefore if you are dissatisfied with your purchase and wish to return an item you may contact us by email at sales@lilpackaging.com within 30 days of your purchase, stating the reason for return*. We will then supply you with a return address and returns number, which is very important because no goods can be returned without a returns number.

*If the correct goods have been sent and you've made a mistake whilst placing the order, we are happy to accept returns for a refund, but you will need to cover delivery costs. All returns must be organised within 30 days of receiving your order. Items must be unused, undamaged and still have their original packaging and labelling attached. Nothing in these conditions affects your statutory rights as a consumer. The credit card or PayPal account used for the purchase will be credited with the original purchase amount (less any delivery charge paid where appropriate).

For made-to-order products (including our 9000 pizza style postal boxes), unfortunately, we cannot accept returns if you have ordered the wrong size or if your product doesn't fit. 

Returns on Digitally Printed items

In the unlikely event of your custom packaging arriving damaged, missing items or is of incorrect specification (outside of the print, material specifications and variances as stated on our product descriptions) then please contact our mail happy team on sales@lilpackaging.com who will be more than happy to help you put things right.

As these items are made to order, we can only offer returns if the items you purchased are deemed faulty.

In all instances, if you’re not happy please do give us a call - we will do what we can to help you.

To avoid disappointment, we always advise that you order 1 unit to test out our service before committing to a larger order.

Delivery and Shipping

So you've either placed your order for packaging from lilpackaging.com, or you're considering it. Naturally you want to know what happens in terms of our packaging delivery terms to you.

Stock Items (All Products Except Made-to-Order 0427 Pizza-Style Boxes)

All products are in stock and available for fast UK delivery, apart from our made-to-order 0427 pizza style boxes (unless clearly stated otherwise).

  • We aim to despatch all stock orders within 1 working day, with orders placed before 12:00pm (GMT) typically despatched the same day.
  • In most cases, we aim to deliver all stock items within 2–3 working days. 

Palletised Orders

Larger orders containing 10+ packs or oversized products may be shipped on a pallet for added protection.

  • We aim to deliver all palletised orders across the UK within 2–3 working days.
  • Next day pallet delivery can also be accommodated on request where required. 

Your order may be delivered on a pallet if:

  • Your order contains 10 packs or more
  • Your order contains multiple oversized packaging items
  • Your order contains part-pallet or pallet quantities

Free UK delivery is available on orders over £175.

Despatch times may vary slightly during peak periods. Please contact us if your order is urgent.


Made-to-Order 0427 Pizza-Style Postal Boxes Only

The only exception to the above despatch times is our made-to-order 0427 pizza-style postal box range. These are manufactured to order and therefore follow different production lead times as listed below.

Guide to Production Lead Times

  • Packs totalling up to 200 units — 7 to 10 working days
  • Packs totalling 200 to 500 units — 10 to 14 working days
  • Pallet quantities (6,000 units) — 20+ working days
  • Custom print orders (minimum 6,000 units) — Please contact us

For custom printed orders, we will email your cutter guide/keyline within 2 business hours for artwork setup approval. Standard pricing is based on a 1 colour print. Please contact us for multi-colour print requirements.

Dispatch times may vary during peak period – please contact us if your order is urgent.

Palletised orders

Your order may be delivered on a pallet if:

  • Your order contains 10 packs or more
  • Your order contains multiple oversize packaging items or packs of our larger products
  • Your order contains Part-pallet or Pallet order quantities
  • Please allow up to 48hrs for despatch on all palletised orders

Any specific delivery instructions please make a notation in the designated "delivery instructions" box during checkout. Failure to do so may result in additional costs incurred by us for reshipping or holding your order. Please be advised that failure to provide such information, including business closure dates/times, may result in an invoice being issued for these costs.

Christmas 2026 Promotion Terms & Conditions:
The 12% Christmas promotion is valid on all orders placed during the promotional period and ends at 11:59pm on 5 January 2026. The offer excludes 0427 Pizza-Style Boxes. Discount is automatically applied at checkout and cannot be used in conjunction with any other offer. All orders placed during the festive break will be processed and dispatched from 5 January 2026. Standard shipping times apply from the date of dispatch. Lil Packaging reserves the right to amend or withdraw this offer at any time.


The majority of orders are dispatched via DPD unless palletised or international. If sent via DPD, you will be sent an email or text when the goods have been despatched with an allocated delivery slot.

Delivery times (following production) by Country

  • UK - 2-3 working days
  • Mainland Europe - 4-5 working days
  • USA - 7+ working days
  • Canada - 8+ working days

At Lil Packaging® we are working on making FREE SHIPPING an option for locations beyond those already available in the UK.  But like all good things, it's going to take a little time.  Until then, simply use the UPS delivery cost calculator in your shopping basket to help you figure out the delivery charges that will apply to your location, and your prospective order.

We may deliver goods by separate instalments.  Each separate instalment shall be invoiced and paid for in accordance with the provisions of the applicable contract.  Each instalment delivery will be a separate contract and no cancellation or termination by either party of any one contract relating to an instalment will entitle you to repudiate or cancel any other contract or instalment. 

Some deliveries may require TSS codes or EORI numbers. Please read our EORI and TSS guide here

Pop-up mailbox. Super fast pack time!

Pop Up Postal Box

A5 size and designed as a great postal option for clothing, fashion items and accessories and 5-7 DVD sets.

Description

S1 Self Seal Postal Boxes 205 x 150 x 100mm – Fast & Efficient Ecommerce Packaging

Our 205 x 150 x 100mm self seal postal boxes are designed to streamline your packing process. Featuring a peel and seal adhesive strip and a quick-assembly design, these boxes allow you to pack orders three times faster, without the need for tape, making them ideal for busy ecommerce operations.


Built for fast packing

These ecommerce shipping boxes are designed with efficiency in mind:

  • Peel and seal strip for quick closure
  • No tape required
  • Easy-fold design for rapid assembly
  • Clean, professional finish for every order
  • Made from 100% recyclable, FSC® certified cardboard — a sustainable postal option for ecommerce retailers.

Perfect for businesses handling high volumes of daily shipments.


What fits in a 205 x 150 x 100mm box?

This compact size is ideal for smaller products and lightweight orders, including:

  • Cosmetics and beauty products
  • Phone accessories and small electronics
  • Clothing items such as t-shirts and accessories
  • Books, stationery and printed materials
  • Subscription boxes and small kits
  • DVD's (fits up to seven!) 

A great choice for businesses looking for a reliable small parcel box.


Ideal for ecommerce and retail

These self seal postal boxes are widely used by:

  • Ecommerce brands and Shopify stores
  • eBay and Amazon sellers
  • Subscription box businesses
  • Retailers shipping small products

Their compact size and quick packing design help improve fulfilment speed and consistency.


Strong and reliable protection

Made from durable corrugated cardboard, these boxes provide excellent protection for items in transit while remaining lightweight to help control shipping costs.


Sustainable packaging option

Manufactured from recyclable materials, these boxes offer an eco-friendly alternative to plastic packaging, helping your business reduce its environmental impact.


Product specifications

  • Internal size: 205 x 150 x 100mm
  • Material: Corrugated cardboard
  • Closure: Peel and seal adhesive strip
  • Supplied flat for efficient storage

Frequently asked questions

Do I need tape for these boxes?
No, the peel and seal strip allows for secure closure without additional tape.

What products are these boxes best for?
They are ideal for small items such as cosmetics, electronics, clothing and subscription products.

Are these boxes suitable for ecommerce shipping?
Yes, they are specifically designed for fast and efficient ecommerce fulfilment.

Looking for postal packaging or fast-to-pack mailing boxes? This pop-up postal box, featuring our hot-melt peel and seal, is roughly A5 size and designed as a great postal option for clothing, fashion items and accessories and 5-7 DVD sets


All mailboxes feature our leading hot melt peel'n'seal / tear-strip system for easy sealing and easy opening of the mailbox.‚ Our entire mailbox range is also 100% recyclable and FSC® certified.

Business sense, brand strength, wow factor. All in one box!

These pop-up mailing boxes are quick to assemble, 3 x faster to pack.

The hinged lid opens up the wow factor with this mailbox.

Hot melt adhesive gives the best, tight seal with these postal packaging boxes - at least twice the strength of standard acrylic based double-sided tape, our glues contain high bio based materials and are formulated for our plastic free accreditation.

This self seal mailbox is incredibly strong.

Problems with storage? At Lil packaging, we hold vast quantities of Lil mailboxes in stock for your convenience.


Your packaging is the first time that your customers physically experience your product. Getting it right is your chance to make the best first impression. We help you do just that.

With a clear understanding of what you need, we use our knowledge and expertise to guide you to the most appropriate solutions. It's about unrivalled service. Over 98% of our orders are dispatched within 24 hours.

Getting valuable products safely to your customers without compromising on costs wasn't easy, until now...

Lil Mailbox patent GB2504320

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Why our S1 Mailbox is a Lil special

Learn our mailbox's special features

Product comparison grid

A table comparing the facets of 2 products
Facet
An open SP343 ecommerce mailbox with 2 shirts being packaged. Image shows the box open and the 'peel 'n' seal' plastic free sealing strip, unique to Lil Packaging. Image includes Plastic Free, Recycling and FSC Certified logos on a white background
SP343 Mail Box Postal Packaging
View details
S343+ Cardboard Mailbox, open with gift items inside - produced by Lil Packaging
S343+ Mailbox Postal Packaging
View details
Price
Price
Regular priceFrom
£0.97
Regular priceFrom
£1.51
Product variants
Product variantsAmount of Product
  • Pack (60 Units),
  • Pallet (640 Units),
  • Sample (1 Unit)
Amount of Product
  • Pack (50 Units),
  • Pallet (600 Units),
  • Sample (1 Unit)
Size
Size
343 x 270 x 70 mm
343 x 270 x 120 mm
Unit Weight
Unit Weight
155 g
203 g
Material
Material
B-Flute
B-Flute
Royal Mail Tariff
Royal Mail Tariff
Small Parcel
Small Parcel

How to Pack our S1 Self Seal Ecommerce Shipping Box 205 x 150 x 100mm | Peel & Seal Postal Box

Lil Packaging | Bespoke Packaging

Lil Bespoke Packaging

We can make any of our packaging (or any e-commerce packaging you need) bespoke! Our MOQs start at 5,000 units. Get in touch to upgrade your unboxing experience.