91552 Double Window Envelope Size: 8 5/8 x 3 5/8″Make doing business more efficient with 8 5/8 x 3 5/8 Double Window Envelopes.Cut the time it takes you to pay bills with these envelopes – just stuff, seal and send. They’re designed to be perfect companions to your checks..   Crisp, 24# bright white wove stock enhances your professional image. Top Window: 3 3/4 x 25/32″ Window alignment: 3/8″ from left 2 15/32″ from bottom Bottom Window: 3 3/4 x 7/8″ Window alignment:  3/4″ from left 27/32″ from bottom Recipient’s address and your preprinted return address show clearly through 2-window DU-O-VUE design. No need to hand-address or print envelopes. Mailed with peace of mind: Tinted inside pattern keeps confidential information from showing through. Reduce mailing delays – checks fit perfectly, so destination and return addresses don’t slide out of view. Quality construction stands up in the mail. Gummed flap seals securely when moistened. 100 per box