Returnable plastic envelopes are lightweight, waterproof, low charge alternatives to boxes and single use plastic envelopes. These poly bags are made of a thin motion picture, or layer regarding films, of low-density polyethylene-a commonly recycled plastic. Although similar to be able to other returnable plastic envelopes, they’ve two adhesive strips as well as a perforation in-between. The perforation permits easy opening when arrival. The two adhesives provide security in the contents until it reaches your visitors destination or back to your warehouse.