Inside dimensions 10 in x 14.5 in (25.4 cm x 36.8 cm). 3X more protection than standard bubble mailers. Seal-sealing closure. www.ScotchBrand.com. Questions or comments? Call toll-free 1-800-328-6275. Recyclable (This mailer is made of the same materials as recyclable plastic bags. Some retail stores and recycling centers collect plastic bags for recycling. Visit Scotchbrand.com/sustainability for locations nearest to you). Made in USA for 3M with globally sourced materials.