Description: 【Material】: Universal Socket Wrench is made of high quality steel material, with excellent durability and strength. 【Process】: 3/8" Drive (F) to 1/2" Drive (M) adapter, to give you all the sizes you need for transition from socket to socket smoothly. 【Socket Adapter】: Ratchet Socket keeps your sockets locked into place and secure through holes that also allow the use of locking pins to ensure stability and execution. 【Quality】: Professional manufacturing, finely machined, stable performance, long service life. 【Application】: Socket Adapter is perfect for drivers, wrenches, and ratchets to convert size up or down for your automotive needs in the garage. The square drive converter is perfect for making the right connection. Specification: 43*12.5mm/1.69*0.49inch Package Includes: 1pcs Joint Socket Note: Please allow slightly errors due to manual measurement and different monitors.