Foldable case for easy storage. The four way wheel brace fits a wide range of vehicles and covers wheel nuts 17mm, 19mm, 21mm and 23mm. It is made from tempered carbon steel for strength and durability, and is equipped with deep sockets and sand blasted handles. Ergonomic design with leverage for reduced effort. These cross wrenches are more labour-saving than normal wrenches. Portable and detachable, they are easy to remove and install, making wheel changes at home or on the go more convenient. Item background. Folding 4 way cross wheel wrench spanner car brace with socket sizes 17mm, 19mm, 21mm and 23mm to fit a range of nut and tyre sizes. The wrench is made by NTI, a trusted brand in the UK. Use scenarios - Changing a wheel at home after a flat tire. - Roadside tyre change during travel when different nut sizes are encountered. - Keeping in a car kit for emergencies or on-the-go wheel maintenance.