Lug bolt guide tools are used to ease the installation of the wheels on your lug bolt vehicle. No more having to try to balance the wheel while installing the 1st bolt to secure it and hope the wheel doesn’t fall on you. Simply screw in your lug bolt guide and hang your wheel on that guide and line everything up. Great to keep in your glove box for that unfortunate flat tire as well for everyday use for the professional mechanic. Even for the weekend track racer..