Poly Mailer, Material Poly, Mailer Type Bubble, Closure Style Self Sealing, Color White, Usable WxL 14 1/4 in x 18 1/2 in, Usable Width 14 1/4 in, Usable Length 18 1/2 in, Outside WxL 14 1/4 in x 20 in, Outside Width 14 1/4 in, Outside Length 20 in, Mailer Number #7, Bubble Size 5/16 in, With Tear Strip Yes, Pre-Printed Address Lines No, Package Quantity 25