Mailer Envelopes Material Poly Mailer Type Bubble Closure Style Self Sealing Color White Usable WxL 5 in x 9 in Usable Width 5 in Usable Length 9 in Outside WxL 5 in x 10 in Outside Width 5 in Outside Length 10 in Mailer Number #00 Bubble Size 3/16 in Material Thickness 0.245 in With Tear Strip No Pre-Printed Address Lines No Package Quantity 250