Main Function: Easily hold and remove damaged, worn and rusty nuts and bolts. Easy to Use: Hold the nut and bolt firmly for easy one-handed operation. > Good performance: The load handled is much higher than other adjustable tools. Precautions: Maintain uniform force on all sides of the fastener to avoid rounding. Suitable Sockets: A perfect replacement for 3/8" to 3/4" and 10mm to 19mm sockets. Product Description Specifications:< /p> Item Type: Universal Socket Adjustable Range: 10-19mm (3/8"-3/4") < p>List of packages: 1 x socket wrench