Mailer Envelopes, Material Chipboard, Mailer Type Flat, Closure Style Self Sealing, Color White, Usable WxL 12 in x 15 in, Usable Width 12 in, Usable Length 15 in, Outside WxL 12 3/4 in x 15 in, Outside Width 12 3/4 in, Outside Length 15 in, Material Thickness 0.02 in, Post-Consumer Recyclability 97 Percent, With Tear Strip Yes, Pre-Printed Address Lines No, Package Quantity 100