High quality - These tongs made of high quality stainless steel are durable, stable, rust and heat resistant. Function - It can hold the different diameters of pots from 1-1/2 inches (38 mm) to 5-3/4 inches (146 mm) for melting and pouring. Design - With the non-slip jaws on the top of the tongs, the jars can be easily held securely. Wide use - These pliers are widely used in the laboratory. 100% Satisfied Service Any defective item can be replaced or refunded for free. If you need further help, please feel free to contact us. We will do our best to help you.