Envelopes & Mailing Supplies

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25 Pcs Manilla Hard Board Back A4 C4 324 x 229mm Envelopes Please Do Not Bend Envelope with Peel & Seal Strip

Colour	Brown
Closure type	Self-Seal
Material	Fibreboard
Number of items	25

About This Item:

Pack of 25 A4 C4 envelopes – perfect for secure document mailing.
Rigid hard board backing – prevents bending and creasing.
Self-seal closure – easy and mess-free peel-and-seal strip.
Pre-printed "Do Not Bend" message – ensures careful handling.
Eco-friendly material – made from 100% recycled and biodegradable fibreboard.
Large C4 size (324 x 229mm) – fits A4 documents without folding.
Ideal for offices, schools, and home use – perfect for mailing important paperwork.

£14.99 ex. VAT £7.99 ex. VAT

In stock

Mixed Size Grey Mailing Postal Bags, Self-Seal Closure Packaging Bags, Delivery Mailing Bag Flexible and Tempered Proof

Material	Polythene (Plastic)
Closure Type	Self-Seal Strip
Color	Pink
Quantity	60-Pack

About This Item:

Pack of 60 mixed-size mailing bags – perfect for shipping various items.
Self-seal closure – strong adhesive for tamper-proof security.
Tear-proof and water-resistant – protects contents from damage.
100% opaque – ensures privacy and confidentiality.
Lightweight and cost-effective – reduces shipping expenses.
Ideal for personal and business use – perfect for eCommerce, retail, and home shipping.
Includes multiple sizes – 6x9", 9x12", 10x14", 12x16".
Durable polythene material – ensures secure and professional mailing.

£10.99 ex. VAT £5.99 ex. VAT

In stock

10 x A4 C4 Manilla Hard Board Back Envelopes - Cardboard Backed Envelopes with Peel & Seal Strip

Colour	Brown
Closure type	Self-Seal
Material	Paper
Number of items	10

About This Item:

Pack of 10 C4-sized envelopes – ideal for A4 documents, certificates, and artwork.
Hardboard backing – prevents bending and creasing.
Peel & seal closure – strong adhesive for a secure seal.
Printed "Do Not Bend" warning – ensures careful handling during transit.
120gsm kraft paper front & 1000-micron board back – durable and protective.
Eco-friendly – made from 100% recycled, biodegradable materials.
Lightweight design – cost-effective for postage compared to all-board envelopes.

£8.99 ex. VAT £4.99 ex. VAT

In stock

10 Royal Mail Small Parcel Postal mailing Boxes 350x250x160mm (Deep Option)

Colour	Brown
Material	Cardboard
Product dimensions	35L x 25W x 16H cm
Item weight	160 Grams

About This Item:

Pack of 10 Royal Mail Small Parcel Postal Boxes.
Dimensions: 350mm x 250mm x 160mm (13.7" x 9.8" x 6.2").
Made from durable, single-wall cardboard.
Ideal for mailing small to medium-sized items.
Deep design for packing thicker or larger items.
Secure and reliable packaging solution.

£14.99 ex. VAT £7.99 ex. VAT

In stock

100 Parcel Bags Mixed Mailing Bags - Postage Bags for Clothes 100% Recyclable Shipping Bags Packaging Bags

Material	Plastic
Colour	Grey
Item weight	0.57 Kilograms
Unit count	100.0 count

About This Item:

Pack of 100 grey parcel bags in 4 sizes (4.5x7", 6.5x9", 9x12", 10x14").
Self-seal adhesive strip for quick and easy closure.
Made from 100% recyclable and waterproof material.
Perfect for mailing clothes, electronics, documents, and more.
Ideal for business, personal use, or e-commerce shipping.
Cost-effective and environmentally friendly solution for shipping needs.

£12.99 ex. VAT £6.99 ex. VAT

In stock

100x Grey Mailing Bags - Mixed Sizes, 100% Recyclable Parcel Bags, Self-Seal Postage Bags for Clothes - Strong & Sealable Plastic Envelopes

Material	Plastic
Colour	Grey
Product dimensions	16.5W x 35.6H centimetres
Special feature	Lightweight
Recommended uses for product	Clothing, Mailing

About This Item:

Pack of 100 grey plastic mailing bags in 4 sizes (4.5x7", 6.5x9", 9x12", 10x14").
Self-seal adhesive for easy and secure closure.
Waterproof and dirt-resistant design for safe delivery.
100% recyclable, made from eco-friendly materials.
Lightweight and durable for cost-effective shipping.
Ideal for mailing clothes, documents, and e-commerce orders.

£8.99 ex. VAT £4.99 ex. VAT

In stock

Buy Envelopes & Mailing Supplies Online – Secure & Reliable Shipping Solutions

Whether for business or personal use, having the right envelopes & mailing supplies ensures that your documents, parcels, and letters are delivered securely. At BuyinUK, we provide a wide range of high-quality envelopes, packaging materials, and mailing essentials to meet your needs.

Our Range of Envelopes & Mailing Supplies

At BuyinUK we offer a variety of envelopes and mailing products, including:

Standard & Window Envelopes – Perfect for business correspondence and letters.
Bubble Mailers & Padded Envelopes – Added protection for fragile items.
Cardboard & Rigid Envelopes – Ideal for important documents, photos, and certificates.
Poly Mailers & Waterproof Bags – Secure and weather-resistant for safe delivery.
Packing Tape, Labels & Accessories – Essential for sealing and organizing parcels.

With our premium selection at BuyinUK you can ensure safe and professional shipping for all your mailing needs.

Choosing the Right Envelopes for Your Needs

Not sure which envelope to choose? At BuyinUK we offer options for every requirement:

Business Envelopes – Professional, high-quality options for office use.
Cushioned & Bubble Envelopes – Great for sending delicate or valuable items.
Large Document Envelopes – Ideal for contracts, certificates, and important paperwork.

Whether you need basic letter envelopes or heavy-duty mailing solutions, we have the perfect option for you.

Mailing Supplies for Secure & Professional Packaging

In addition to envelopes, BuyinUK offers essential mailing supplies, including:

Packing tape & dispensers for securely sealing packages.
Shipping labels & stickers for clear identification.
Postal tubes for protecting rolled-up documents and posters.

With our high-quality envelopes & mailing supplies, you can send items with confidence.

Why Buy Envelopes & Mailing Supplies from BuyinUK.co.uk?

Extensive Selection – From standard envelopes to specialty mailers, we have it all.
Affordable Prices – Get the best deals on all mailing supplies.
Fast & Reliable Shipping – Order from BuyinUK and receive your products quickly.
Perfect for Businesses & Individuals – Reliable solutions for professional and personal use.

Shop Envelopes & Mailing Supplies Online Today!

Stock up on high-quality envelopes & mailing supplies at BuyinUK Whether you need business envelopes, padded mailers, or secure packaging, we have the right solution for you. Browse our collection today and enjoy fast delivery at unbeatable prices!