Yeah Racing YA-0533BK Magnetic Body Hole Marker for 6mm Body Posts
Precisely measure and mark body post holes on all your cars or trucks from now on! Never mount a body crooked again, with this magnet locating system you can accurately mark where you want your body to be in relation to your chassis. The hole in the centre of the magnet allows for you to mark the position with a marker!
Please be careful when using rare earth magnets as they are very powerful but can be brittle.