3 x 3 x 18 Square White Corrugated Mailing Tube 25/Bundle Discount_5933550108762_20 Use with refrigerants such as

Use with refrigerants such as Cold Packs

Economical Shippers are light-weight

Constructed of two layers of low density polyethylene for better resistance to punctures and better tensile strength

All styles are appoved for shipment of your product using Post Office (USPS)

1 1/2" polystyrene foam

3 x 3 x 18 Square White Corrugated Mailing Tube 25/Bundle Discount_5933550108762_20 Use with refrigerants such asThese 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.