Features * These mailing envelopes are made of polyethylene, which is strong and durable, with tear resistance, puncture resistance and waterproof functions. * Once sealed, they stay sealed and the only way to open the mailing bag is to tear it open. * Strong & Durable material id of heavy bearing capacity and great toughness for Lifting heavy objects. * Easy Packing peel and then seal your items inside. Specification/ Technical Details * Item type: Mail bag * Style: Modern * Dimensions: mail bag width is 17cm height is 30cm. * Material: polyethylene * Special Features: self-adhesive closure, lightweight * Application: Package Items Package Included * 20/30/50/100/200/300/500/1000 x Mailing Bags. Note * The colour of the item may be slightly different from the pictures. * Delivery times can vary depending on the destination location. * Please allow 0.2-0.5cm differences due to manual measurements.