Poly Mailer, Material Poly, Mailer Type Bubble, Closure Style Self Sealing, Color White, Usable WxL 8 1/2 in x 10 1/2 in, Usable Width 8 1/2 in, Usable Length 10 1/2 in, Outside WxL 8 1/2 in x 12 in, Outside Width 8 1/2 in, Outside Length 12 in, Mailer Number #2, Bubble Size 5/16 in, With Tear Strip Yes, Pre-Printed Address Lines No, Package Quantity 50.