Self Sealing (Just peel-n-seal)– keeps contents secure and tamper -evident and easy to use. Extra Tough Bubble Inside.• Easy to use – Prepare shipments quickly; these mailers are perfect for shipping a wide variety of items. High-slip bubble cushioning allows for easy product insertion and removal. Shipping labels adhere securely to the surface.• Lightweight – Air bubble cushioning along with the polythelene exterior material provide exceptionally light protection. Lower shipping costs combined with faster shipment preparation equals big savings.• Confidential – Completely opaque for content privacy and professional appearance.• Carrier approved – Use for all of your shipments with all carriers including Canada Post, UPS, FedEx, DHL, USPS and more.• Environmentally friendly – These mailers are 100% recyclable. Colors Available: Teal Self sealing; water and tear resistant. Dimensions: #0000 (4"x7") / (Usable Size 4"x6") #000 (4"x8") / (Usable Size 4"x7") #0 (6"x10") / (Usable Size 6"x9") #2 (8.5"x12") / (Usable Size 8.5"x11") Material: Polyethylene