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