If you run a mail order or online selling business & are looking for postal supplies these Post Safe envelopes are ideal. 335x 430mm (C3) in size they are perfect for larger items &, being so lightweight, they help to keep postage costs in check. &, despite being made from such a light polythene material, they are immensely strong. Made In The UK These biodegradable peel & seal envelopes are made in the UK by Post Safe. Post Safe have carved out an excellent reputation for manufacturing finest top quality postal supplies. & these envelopes are made to the highest standards & are approved by the Royal Mail. Easy & Convenient To Use These C3 envelopes are designed to ‘wrap around’ the contents reducing the profile of the package. & every little helps when it comes to reducing the cost of postage. Once the contents are in the envelope the simple peel & seal closure keeps everything secure. Made from biodegradable polythene the envelopes are made to be waterproof & puncture resistant. &, of course, they are 100% recyclable. There are three separate areas on the easy to write on surface including address, return address & postage. Features C3 Opaque Peel & seal closure Made from 100% recyclable biodegradable polythene Perfect for online sellers & mail order companies Supplied in packs of 100 Lightweight & durable Tear resistant Waterproof Easy to write on surface Approved by the Royal Mail Made by Post Safe in the UK Manufacturers Number PG32