This product is a socket adapter, which is made of durable carbon steel material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your hand drill, a very practical accessory that will meet your needs well. Features -Color:Black -Material:Carbon steel -Size:6.50X1.20X0.90cm/2.55X0.47X0.35in - Each square head of the 3/8 socket adapter has a spring ball bearing part, which can effectively hold the socket and avoid sliding. - This socket adapter is specifically designed for use in hand drive applications, or with power tools when used with a drop-in handle. - Allows for easy use of the handle nut driver. 1/4 inch impact socket, extended socket driver bit, handle nut driver and drill bit for automotive DIY. - The surface is , which is not only beautiful, but also improves the rust resistance of the socket adapter kit and prolongs its service life. - Lightweight design, no pressure to carry, easy to use and easy to operate. Package list: 8 x socket adapters