The wheel mounting aid is made of steel, galvanized and very stable. Perfect to fix the wheel to the wheel hub during wheel change. Facilitates finding the screw holes in the wheel assembly, which can sometimes be very difficult. Fixes at the same time the patch wheel and thus facilitates screwing. Screw the wheel mounting aid into a screw hole in the wheel hub. Now place the wheel on the hub and use the wheel mounting aid as a guide. Color:Silver Material: stainless steel Specification: M14x1.5 Package contents: 1 x tire change tool Only the above package content, other products are not included. Note: Light and different displays may cse the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.