Adaptation: Suitable for almost all steering wheel bases including T300, T500, TGT, -PC, -XW, etc. Material: Structural plastic, produced by mold for reliable quality and accurate dimensions. Thickness: about 15MM. Quick release ring allows for easier tightening without loosening, enhancing user experience. Special instructions: Slight tolerance may occur during installation due to the plastic material, which is normal. This product is produced by mold. Compared with 3D printed parts, it has more reliable quality, more accurate dimensions, and smoother and more beautiful appearance. Anyone who uses know that the original steering wheel needs to be fixed with a screw, but in fact if you tighten that pivot, it 't come loose, but it's hard to apply force to the round pivot, so you can use this quick release ring to lend a hand, tighten it and it 't come loose! When installing this tool, there be a slight tolerance since the quick release is made of plastic. Everyone's steering wheel has a little tolerance. On rare occasions it may be too tight or too loose, this is normal. Color: Red Material: plastic Package Contents: 1*Adapter Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.