Mailer Envelopes Material Chipboard Mailer Type Flat Closure Style Self Sealing Color Kraft Usable WxL 11 in x 13 1/2 in Usable Length 13 1/2 in Outside WxL 11 in x 13 1/2 in Outside Width 11 in Outside Length 13 1/2 in Material Thickness 0.028 in With Tear Strip Yes Package Quantity 100