EcoSwift Brand Premium Poly Shipping Bag Waterproof Durable Self-Seal Mailer 1.7 Mil, 4 in. x 6 in. (Size 00), Solid Gray, 4000-Pack

Quantity: 4000 Size: #00 Dimensions: 4" x 6" 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