360 Degree Impact Universal Joint-Socket Swivel Knuckle Joint Air Wobble Socket Adapter Extension Electric Wrench Features: *Precision-machined heat-treated black chrome molybdenum steel for outstanding durability and strength in every impact movement *High quality black phosphate coating prevents rust and corrosion, extending tool life *Full 360-degree motion allows the U-joint to rotate the socket into full rotation for tighter space for better coverage *A spring-loaded ball at the end of the rod locks the socket in place to ensure safety and prevent falling *Widely used in a variety of scenarios, bicycles, cars, various mechanical auto repair, etc. Specification: *Material: Chrome Molybdenum Steel *Color: Black(As Pictures Show) *Size: 1/2 inch *Weight: about 158g Package Included: 1*1/2 inch Drive Joint Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. _x000D_ _x000D_