EcoSwift Brand Premium Self-Seal Rigid Cardboard Mailer 250GSM, 9 in. x 11.5 in., White, 500-Pack

Quantity: 500 Dimensions: 9" x 11.5" Thickness: 250 GSM Self-sealing, peel and stick Extremely durable and lightweight cardboard material helps save on postage Provides bend resistance Surface easily accepts ink, stamps, and labels Approved for USPS, FedEx, UPS, and DHL