Test tubes are handheld tubes used for mixing or heating chemicals in a laboratory. They are open at the top and rounded at the bottom, and usually made of glass or plastic materials. Some are ...

Multi-bore glass tube and rod is also available. Types of Glass Tube and Rod There are many different types of glass tube and rod. Silica-based glass is the most common type, but specialty glasses are ...

Dropper/pipette A thin, tapering glass or plastic tube used to eject or suck in a small amount of fluid. Test tube A thin, cylindrical container, usually made of glass. Used to hold chemical and ...