Envelope DL Window 90gsm White Self Seal (Pack of 1000) WX3481Made from quality 90gsm paper, these white envelopes feature a convenient address window and self adhesive flap for secure closure. Just pop your letter in the envelope, fold down the flap and press to seal securely. These DL envelopes are designed A5 documents folded once, or A4 documents folded twice. This bulk pack contains 1,000 white envelopes. Size: DL (110 x 220mm) Wallet envelopes with address window 90gsm paper Colour: White Window size: 35 x