Flat Top Steering Wheel Button Material: 316 Stainless Steel Fits Steering Wheels with Rim Dia. from 5/8in to 1in (Please check the your Steering wheel Rim Dia. before purchase) Quicker Turning Response, Corrosion resistant and durable, Rotate smoothly WARNING: The mounting clamp is designed for an oval ring bar. if your wheel is round stock, you could reshaped the lower piece slightly with two pairs of pliers. May fit perfectly and works great. Colour: Silver Material: stainless steel Package Contents: 2 x Flat Top Steering Wheel Knob 2 x Wrench 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.