Mailing bags and envelopes include mailers, envelopes, mailing tubes, paper bags, packing list envelopes, and impulse sealers and labels. Mailers such as bubble mailers, flat mailers, nylon reinforced mailers, and poly mailers hold small or flat items for shipment. These mailers protect the contents of the package and help prevent breakage during shipment. The mailing envelopes are flat and have a closure to seal the contents securely inside. These envelopes include business envelopes, clasp envelopes, expandable envelopes, inter department envelopes, jumbo envelopes, redi seal self seal envelopes, Tyvek envelopes, and more.