EcoSwift Brand Premium Poly Shipping Bag Waterproof Durable Self-Seal Mailer 1.7 Mil, 6 in. x 9 in. (Size 1), Solid Gray, 2000-Pack

Size: #1 Dimensions: 6" x 9" Thickness: 1.7 mil Self-sealing, peel and stick Silver lining inside keeps contents hidden from view Superior tear and puncture resistance Surface easily accepts ink, stamps, and labels