Features:[1:16 LABOR-SAVING TORQUE MULTIPLIER]: With a 1:16 gear ratio and 1/2" drive, this tool significantly reduces the force needed to loosen tight lug nuts, making tire repairs easier for both mechanics and DIYers in garage or shop settings.[COMPLETE LUG NUT REMOVAL TOOL KIT]: This kit comes with 17mm, 19mm, 21mm and 22mm sockets. It fits a wide range of vehicle models, saving you time when handling routine tire maintenance or unexpected repairs.[HIGH-STRENGTH TORQUE WRENCH CONSTRUCTION]: Our torque wrench is crafted from chrome vanadium steel. This torque wrench is built for durability under high-intensity use, providing reliable performance for your automotive work.[CONVENIENT FOR ALL SKILL LEVELS]: Efficiently complete tasks on the go or in the garage. Featuring an intuitive design that requires no professional expertise, it is ideally suited for emergency repairs and DIY projects.[VERSATILE SET, READY TO GO]: Compatible with most cars, SUVs, and light trucks. All components are compactly stored in a reliable blow-molded case, facilitating easy transportation and protected storage. Product Description:-Material: quenched 40Cr alloy steel with chromeplating-Gear ratio: 1:16-Max torque output: 680N/M-3 sockets: 17mm/ 19mm/ 21mm/22mm-Case Size: 8.3*6.3*2.8in-Weight: 4.9 lb. How to use it:1. Install the wind gun sleeve into the square end of the shank and the other end of the rocker.2. The wind gun sleeve is placed on the nut to be disassembled (fastened), pay attention to the elastic direction, and shake the rocker to make the handle against the side of the other bolt.3. When the nut is loosened, replace it with the extension rod for quick disassembly. After tightening, fasten it with the extension rod first, and then use a labor-saving wrench to lock it. Package Included:One (1) 1/2" Square DriveThree (4) Sockets (size 17mm, 19mm, 21mm,22mm)One (1) Storage CaseCR-V