X-Haibei Maneuvering Knob Marine Sport Boat Steering Wheel Knob 316 Stainless Steel Quanity: 1 Konb Size : Dia. 1.5inch,length:1.7inch Clamp size: Fits most steering wheels with rim dia. from 5/8" to 1". Material: 316 Stainless Steel All Stainless Steel Steering Wheel Maneuvering Knob With Plastic Cap