PowerKnob Sportsman – Black The Ultimate In Steering Control! The rugged and economical Sportsman Series PowerKnob features the same ball-bearing design and ergonomic shape as the ProSeries. The Sportsman Series Knob is built of black polymer and marine-grade stainless with precision milled bearing races. Feataures: Improves handling and performance Maneuver with precision and confidence Twin races of fast action ball bearings All-weather construction Strap or bolt onto virtually any steering wheel Smooth ball bearings Easy 5 minute install Ideal For: Boats Tractors Golf Carts Off-Road Maintenance Vehicles Lawn Mowers Contents: 1 – Sportsman Series PowerKnob 2 – Wheel Rim Straps 1 – 1/4″ Allen Wrench 1 – 2″ Cap Screw for Thru-Bolting