"Product Specifications: Title: Steering Wheel Knob, Spinner Knobs with Silicone Surface and Metal, Speed Knob for Steering Wheel, Anti-Slip Knob for Cars Truck Boat Tractors, Steering Wheel Accessories Material: Silicone surface with metal construction Compatibility: Suitable for use on cars, trucks, boats, and tractors Feature: Anti-slip design for enhanced grip and control Functionality: Provides smoother steering and maneuverability Product Highlights: Enhanced Control: Our steering wheel knob features a silicone surface and metal construction, offering a comfortable grip and precise control while driving. Versatile Compatibility: Designed to fit various vehicles, including cars, trucks, boats, and tractors, this spinner knob is a versatile accessory for all drivers. Anti-Slip Design: The anti-slip knob provides enhanced grip, ensuring stability and control even in challenging driving conditions. Easy Installation: Simply attach the speed knob to your steering wheel for quick and easy installation without the need for special tools. Durable and Reliable: Made with high-quality materials, this steering wheel accessory is durable and long-lasting, providing reliable performance for all your driving needs. Using Scenarios: Daily Commute: Improve your daily commute with our steering wheel knob, which makes steering effortless and comfortable, reducing driver fatigue. Off-Road Adventures: Enhance your off-road adventures with the added control and maneuverability provided by our spinner knob, allowing you to navigate rough terrains with ease. Fleet Vehicles: Ideal for fleet vehicles such as trucks and tractors, our steering wheel accessory ensures smooth and efficient steering for long hours of driving."