The material for the crucible tongs is stainless steel. Several modifications of crucible tongs are used, designed for different types of laboratory glassware and, accordingly, differing in the amount of bending. There are straight crucible tongs, medium to strong curved tongs, and special shaped tongs suitable for transferring flasks and glasses. In addition to working with glassware, laboratory crucible tongs can be used to examine a variety of materials. With their help, it is convenient to hold the sample under study over a heating plate or directly in the flame of the burner.