1、Plastic insert inside the socket protects the front face on chrome wheel nuts 2、Suitable for impact use, ideal for garage use 3、Anodic oxidation treatment for corrosion resistance 4、Fit any 1/2" drive ratchet / bars, etc 5、Includes Metric Sizes: 17mm, 19mm, 21mm, 22mm, 23mm, 24mm & 27mm A 7-piece thin wall socket kit for wheel/alloy wheels. A wear-resistant nylon sleeve on the outside of the socket protects the wheel from chipping and scratching. Perfect tool for professional or DIY use. Features: Plastic insert inside the socket protects the front face on chrome wheel nuts. Suitable for impact use, ideal for garage use. Anodic oxidation treatment for corrosion resistance. Fit any 1/2" drive ratchet / bars, etc. Includes Metric Sizes: 17mm, 19mm, 21mm, 22mm, 23mm, 24mm & 27mm. Comes with a storage case for easy storage and transportation. Specification: Socket Length: 78mm / 3.1inch Type: 1/2'' drive Material: Chrome Molybdenum Socket + Nylon Sleeve Handle Method: Hardened and Strengthened, Anodized(Corrosion Resistant), Customized Blow Molded Housing Function: For Pneumatic Tools and Impact Guns Size and Color: 19mm (Gold) 21mm (Red) 22mm (Green) 23mm (Purple) 24mm (Brown) 27mm (Black) 17mm (Blue) Product List: 1 x Wall Deep Impact Socket Set(7 pcs) Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.