RELEASE PAIN FROM SHOULDER - Steering wheel booster give you a better care. It allows your hands to be free and relieve shoulder aches and fatigue. It is a breeze for you when driving long distances.WHEEL COMPANION AND EFFORTLESS - Car vehicle steering wheel auxiliary booster assists you to control steering wheel, not grinding. So your knuckles and hands can get hung up and take relax.A GREAT GIFT - Can be a road companion during your drive. It will be a special gift to your parents or friend who usually drive car.EASY TO INSTALL - Steering Wheel booster simply clamp and feel free to adjust the expected size you want suitable for your car steering wheel.Suitable for: Model S XColour:BlackMaterial:SiliconePackage Contents:2 x Steering wheel counterweight ringsFriendly reminder:This product is not a safety device. Improper use of this product may cause injury or accidents. The device is only used for closed road sections, not for pubProduct is just a booster function, not completely freeing your hands. Never let the car drive automatically.Only the above package content, other products are not included.Note: Light 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.