Mailer Envelopes Material Poyethylene Metalized Polyethylene Mailer Type Insulated Closure Style Lip and Tape Color Silver Usable WxL 10 1/2 in x 14 3/4 in Usable Width 10 1/2 in Usable Length 14 3/4 in Outside WxL 11 in x 15 in Outside Width 11 in Outside Length 15 in Mailer Number #5 Bubble Size 3/16 in Material Thickness 0.003 in Post-Consumer Recyclability 0 Percent With Tear Strip No Pre-Printed Address Lines No Standards FDA Compliant Materials Package Quantity 50