This is a water flower shift knob. The two-tone flowers have a strong presence and give a luxurious feel, making it a very beautiful shift knob. It comes with three adapters: M10 x 1.5 M10 x 1.25 M8 x 1.25 The main body diameter is M12 x 1.25. The diameter is approximately 4.5cm. Please understand that this is an imported product, so there may be minor transport scratches that are not noticeable. Thank you for your consideration.