Practical steering spinner set: the package comes with quick release steering wheel knob spinners in black, well polished with smooth surfaces, providing you a comfortable and convenient using experience when driving, you can also share one of them with your families or friendsReliable for repeated uses: equipped with quality ABS shells, these adjustable steering wheel knobs are sturdy and hard wearing in structure, not easy to break, besides, they have silicone caps and metal bearings, offering a smooth and stable operation for you, hardly jamming upImprove your driving performance: the one hand steering wheel knobs can help you with rotating your steering wheel, specifically, they can tightly cling to your steering wheel, their silicone capsule can rotate for 360 degrees, thus taking less efforts and time when you steer, according to your driving habits, you can easily install them on different positions of your steering wheelNice suitability: there is a plastic arch shell installed on the loop of the adjustable truck steering knob, which can be easily removed and put on, making it suitable for most steering wheels, moreover, when you want to apply the knob to a steering wheel wrapped by a protective cover, you need to remove the arch shell, not occupying too much time and energyComforting gifts: during long term driving, drivers may feel exhausted at shoulders, wrists and fingers, these black steering wheel ball knobs can release their fingers and wrists from rotating steering wheels, why not choose the steering wheel knob spinners for trucks as gifts on Christmas, Thanksgiving Day, Halloween, anniversaries birthdays, showing your love and care for your friends and families, thus making their driving experiences more relaxedHardly slipping: with the silicone caps and textured surfaces of the boat steering wheel knobs, you can easily grab them, not easy to slip, offering you a stable using experience.Easy to install: to install the marine spinner knob, you just need a few seconds, open its rings and affix it, no tedious install steps, not occupying too much time and energy.Colour:blackMaterial:ABS+SiliconePackage Contents:2 x Black steering wheel spinnersOnly the above package content, other products are not included.Note: Light shooting 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.