Postmaster C4 Window Envelopes 229 x 324 mm A4 100 GSM Self Seal White 250 Pack

C4 ENVELOPE - Designed to take sheets of A4 Paper unfolded. Designed to be sent using a single Large Letter 1st Class or 2nd Class Stamp (max 100g) KEEPS YOUR DOCUMENTS PRIVATE - our envelopes are printed on the inside with an opaque blue pattern that makes it difficult to see what is inside the envelope PEFC-CERTIFIED FOR SUSTAINABILITY - PEFC is a European based Forest certification system, that allows small- and family forest owners to demonstrate their excellence in sustainable forest management HYGIENIC & FAST - this envelope features Self Seal closing, which means no licking or peeling. Simply press the flap down for a secure, hassle free close MADE IN THE UK - we manufacture millions of Envelopes for some of Britain's biggest Organisations as well as for thousands of small, home based businesses using quality, bright white 100GSM paper