ICON™ professional socket extensions are among the best available on the market. We use a premium chrome vanadium steel, with a high polished finish that not only looks great, but easily wipes clean and resists corrosion. Easy-to-read size markings, and a premium storage tray are also included to help keep your tools organized. Like the rest of ICON™ hand tools, these sockets are backed by a hassle-free, manufacturer’s lifetime warranty.