1Highly compatible with various standard wrenches and compatible with 1/2 inch drive and 21mm hex drive. 2Made of high-quality aluminum alloy, it is sturdy and has nice durability with polished and heat-treated surface, wear resistant and not easy to rust or corrode. 3This tool can help you extend the wrench, easily tighten and loosen rusty bolts or over-tightened nuts as pivot points. 4It saves you time and effort and is perfect for adding more leverage to stubborn nuts and bolts and getting into hard-to-reach areas. 5Small, portable and easy to handle, it is perfect for professionals to operate and supports working with heavy equipment. Features: Highly compatible with various standard wrenches and compatible with 1/2 inch drive and 21mm hex drive. Made of high-quality aluminum alloy, it is sturdy and has nice durability with polished and heat-treated surface, wear resistant and not easy to rust or corrode. This tool can help you extend the wrench, easily tighten and loosen rusty bolts or over-tightened nuts as pivot points. It saves you time and effort and is perfect for adding more leverage to stubborn nuts and bolts and getting into hard-to-reach areas. Small, portable and easy to handle, it is perfect for professionals to operate and supports working with heavy equipment. Specifications: Color: Black Material: Aluminum Alloy Item Size: 210 * 110 * 50mm/ 8.3 * 4.3 * 2.0in Item Weight: 230g/ 8.1oz Packing List: 1 * Wrench Extender 1 * Wrench Extender