39001 #9 Recycled Envelope Size: 3 7/8 x 8 7/8″ Look more professional! Use eco-friendly Recycled Business Envelopes for your business needs.Give your business a professional, established look! 24# White Concord Double Window Envelope w/Gray Security Tint Confidential pattern keeps contents from showing through. Top window size is 1 x 4″ Window alignment: 21/32″ from left  2 1/2″ from bottom Bottom window size is 1 1/8 x 4″ Window alignment: 9/16″ from left 1 1/32″ from bottom Made from 100 percent recycled paper. 250 per pack