Mailer Envelopes, Material Chipboard, Mailer Type Flat, Closure Style Self Sealing, Color White, Usable WxL 12 1/2 in x 9 1/2 in, Usable Length 9 1/2 in, Outside WxL 12 1/2 in x 9 1/2 in, Outside Width 12 1/2 in, Outside Length 9 1/2 in, Material Thickness 0.02 in, With Tear Strip Yes, Package Quantity 100