Product Description SK Tools USA 1/4" Drive, 6 Piece, Chrome Wobble Extension Set: 1-1/2" - 14" | 40936 Amazon.com The SK Hand Tools 6-Piece Chrome Wobble Extension Set features a high-polish, SuperKrome finish, which protects the tools from harsh working environments and provides long life. These wobble extensions provide improved access over standard extensions by allowing a working angle up to 30 degrees to access a fastener. Additionally, the diamond knurled grip provides sure handling, even when the tool is oily. This set comes packaged in a plastic tray and has a 1/4-inch drive.What's in the Box 1-1/2-inch, 2-inch, 4-inch, 6-inch, 10-inch, and 14-inch drive chrome extension in a plastic tray. From the Manufacturer 6 piece is made in the U.S.A., featuring SK's high polish SuperKrome® finish, which protects the tools from the harsh working environments found in today's workplace. Provides long life and maximum corrosion resistance. Wobble extensions provide improved access over standard extensions by allowing an indirect approach to the fastener. See more