Item Number 13718 No addressing needed. Just fold, insert materials and mail. The double window design clearly shows return and destination addresses. Gummed flap seals securely when moistened. White wove stock Bottom Window: 7/16 from left, 1 9/32 from bottom. Top Window: 7/16 from left, 2 31/32 from bottom. Window sizes are 1 x 3 3/4 Pricing is for 250 envelopes Pricing is for 250 envelopes Ships direct from the plant Pricing is for 250 envelopes Additional Details ------------------------------ Product description: Item Number 13718 No addressing needed. Just fold, insert materials and mail. The double window design clearly shows return and destination addresses. Gummed flap seals securely when moistened. White wove stock Bottom Window: 7/16 from left, 1 9/32 from bottom. Top Window: 7/16 from left, 2 31/32 from bottom. Window sizes are 1 x 3 3/4 Pricing is for 250 envelopes. Pricing is for 250 envelopes