Cole-Parmer Stuart Glass capillary tubes, open one end, pack of 100
These capillary tubes are constructed of soda glass. They can easily be sealed using a Bunsen flame. The tubes come in a durable tube holder for added protection. They are ideal for your melting point apparatus. Tube dimensions: 100 mm length, 1.9 mm outer diameter, 1.3 mm inner diameter, and 0.3 mm wall thickness.