• 4-Up Horizontal Laser W-2 Window Gummed Envelope• Overall size: 5-5/8" x 9"• Top Window: 3-3/8" x 3/4" ○ Position: 3/8" from left and 4-1/4" from bottom• Bottom Window: 3-3/8" x 7/8" ○ Position: 3/8" from left and 5/8" from bottom• Each pack contains 100 envelopes