Scotch(TM) Decorative Plastic Bubble Mailer Mixed Case, 8914-DS, 8.5 in x 11.25 in, Size 2 Scotch Decorative Plastic Bubble Mailer Mixed Case are approved by fedex & usps Scotch products go through rigorous quality testing to ensure quality standards Each Box includes 12 8.5 in x 11.25 in, Size 2 decorated bubbled mailer envelopes Top quality & durable, and feature tear strength self-seal adhesive closure that is tamper evident & will not re-open once it has been pressed closed This Mailer is made of the same material as recyclable plastic bags. Some retail stores and recycling centers collect plastic bags for recycling. Visit Scotchbrand.com/sustainability for locations nearest you