3 x 3 x 43 Square White Corrugated Mailing Tube 25/Bundle cool shield bubble wrap Reinforced side walls and wide

Reinforced side walls and wide ledge allow high stacking

The outer surface of the mailer is white and the inner lining is silver

Reclosable bags are measured by inside usable dimensions (without the zipper or lip included in the size)

Heat-stable insulation for furnace and oven controls

Sealing poly bags with twist ties makes bags reusable

3 x 3 x 43 Square White Corrugated Mailing Tube 25/Bundle cool shield bubble wrap Reinforced side walls and wideThese 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.