The product is a lot of 4 Cerro Alloy ingots bar with low melting temperature, specifically designed for soldering. Made by Cerro Metal/Bolton Metal in the United States, these cadmium-free, lead-free, and bismuth tin alloy ingots are ideal for various metalworking and manufacturing applications. The Cerrotru model has a width of 1 1/2 inches, making it suitable for a range of soldering projects requiring a low melting temperature alloy.