5 Star DL Window Wallet Envelope Press Seal 80gsm 110x220mm White (Pack of 1000) 6385155 Star white DL wallet envelopes. These envelopes are made from lightweight 80gsm paper and feature a window, allowing you to clearly display the address of your correspondent. They feature a press seal, meaning that all you have to do is apply the two glued flaps together to form an instant bond. This pack contains 1000 envelopes. DL size 110x220mm Made from lightweight 80gsm paper Window size of 35x90mm Window position 19mm in from LHS, 18mm up