Tape Logic TLM4437 Square Mailing Tubes, 4 x 4 x 37, Oyster White (Pack of 50)
Square tubes will not roll around which makes them easier to pack and ship than traditional round mailing tubes. These one piece tubes ship flat to save space. Tubes fold together fast without tape or glue. Constructed from 200#/ECT-32-B white corrugated. Proudly made in the USA!