The product is a set of Snap-on Tools 4 pc 3/8" Drive Locking Extensions, including sizes 3in, 6in, 11in, and 24in. These extensions are designed for standard sockets and feature a specialty drive type and 3/8in. The set also includes and is made in the United States with a chrome surface finish. The manufacturer part numbers are 204FXKLA, and it is important to note that this product carries a California Prop 65 Warning.no warranty new new