3 x 3 x 12 Square White Corrugated Mailing Tube 25/Bundle Class A These strong poly envelopes are

These strong poly envelopes are made from strong polyolefin and are water

3M 250 - Strong paper backing for good paint lines

showers and boats

These clear polypropylene bags are acid-free and are FDA approved for food storage

3 x 3 x 12 Square White Corrugated Mailing Tube 25/Bundle Class A These strong poly envelopes areThese mailing tubes have a square shape for easy inserting and removal. Square mailing tubes ship flat and take up less space. They will rest on flat surfaces without rolling off and are easily stackable. Square mailers ship flat and take up less space. They will rest on flat surfaces without rolling off and are easily stackable.