Title Buck4u Lots Poly Mailers Self Seal Envelope Tear Proof Post Packing Shipping Bag Spec 4x6"x10Pcs 5x7"x7Pcs 6x9"x6Pcs 7.5x10.5"x5Pcs 9x12"x4Pcs 10x13"x4Pcs 12x15.5"x3Pcs 14.5x19"x2Pcs 19x24"x1Pcs 24x24"x1Pcs Features Three layer co-extruded polyethylene film. High strength seams allow over-stuffing. Tough, durable, featherlight for greater shipping material savings. Extra smooth surface is perfect for handwriting, stamping or labeling adhere easily. Features a peel-and-seal adhesive for hassle-free closing, the self-seal adhesive strip, no need for tape or staples. Water resistant ,tamper resistant and tear proof. Perfect for shipping a wide variety of non-fragile items without tape. Black opaque non-padded inner layer provides confidentiality and protects content privacy. Recommended for shipping bulky apparel, purses, books and quilts. Specifications Size: Check the specifications table to choose the correct size you need. Quantity:Check the table to get the quantity per set (pcs) for each varied size. Dimensions: Outside length listed in the chart does not include unfolded sealing flap 1.5~2"(4~5cm). Dimensions: Outside width listed in the chart does not include seams. Material: 100% virgin polyethylene raw material Color: White outer, Black inner Thickness: 2.6 +/- 0.1 mil