Since our beginning, GEARWRENCH automotive specialty tools have been driven by innovation. From our first specialty tool, the Model-T valve spring lifter, to our latest Ratcheting Puller, we’ve built our reputation with tools that make tough jobs easy. FROM THE MANUFACTURER The KD Tools 3-Piece 1/2-Inch Drive Extension Set includes 5-inch, 10-inch, and 15-inch drive extensions. They're made from rugged 6130 alloy steel plated with fully polished nickel chrome. KD Tools backs its tools with a lifetime warranty. What's in the Box 5-inch, 10-inch, and 15-inch 1/2-Inch drive extensions with storage tray.