Test tube

A 3D test tube, also known as a culture tube or sample tube, is a common piece of laboratory glass consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom. Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals. 3D test tube can be used in 3D lab or healthcare center as a part of 3D collection containing all necessary instruments  for chemistry, biology, chemist experiments, medical centers and so on, together with tubes, glass flasks, thermometers, probes, tables with clamps and so on.