Features: *Made of high quality chrome vanadium steel. *, high hardness, rust resistant. *A hole in the middle, can use it directly with a suitable bar. *3/8'' square inner hole turned to 1/2''. *Paired with a pole and screwdriver, it's suitable for repairing cars, mechanical parts, electronics, pipes, and more. Specification: Product Name: Sliding Rod Socket Adapter Material: Plastic + middle soft layer + black hook Color: Black, Yellow(As shown) Type: 3/8'' to 1/2'' Hole Aperture: 16mm Length: (Approx. ) 43mm Suitable for: Paired with a pole and screwdriver, it's suitable for repairing cars, mechanical parts, electronics, pipes, and more. Quantity: 1pc Package Includes: 1 × Socket Adapter Note: 1.Transition: 1cm =10mm =0.39inch. 2. 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. 3. Please allow slight manual measurement deviation for the data.