Tube (container)

Toothpaste in tube

Tube of glue

Tubes of oil paint

A tube, squeeze tube, or collapsible tube is a collapsible package which can be used for viscous liquids such as toothpaste, artist's paint, adhesive, caulk, & ointments. Basically, a tube is a cylindrical, hollow piece with a round or oval profile, made of plastic, paperboard, aluminum, or other metal. In general, on one end of the tube body there is a round orifice, which can be closed by different caps and closures. The orifice can be shaped in many different ways: plastic nozzles in various styles and lengths are most typical. The other end is sealed either by welding or by folding.

Typical tube sizes range from 3ml to 300ml.^[1] Most tubes are designed to be dispensed with hand pressure, but some are used with a tube key at the base to help roll them up.