ITEM NAME:Carbon Fiber Pattern Car Help Round Hand Crank Steering Wheel Knob A5E5 Carbon Fiber Pattern Car Help Round Hand Crank Steering Wheel Knob A5E5 Product Name: Control knob Material: metal, plastic Main color: Silver, black Attachment ring diameter : 3.1cm / 3cm Knob diameter (approx.): 6cm / 6.1cm Net weight: 110g Package contents : 1 x steering wheel knob.: 6cm / 6.1cm. Net weight: 110g.