ITEM NAME:Car Hand Control Power Handle Grip Spinner Knob Car Steering Wheel Ball Product Description Description: Universal Car Auto Hand Control Power Handle Grip Spinner Knob Car Steering Wheel Ball Booster Features: It is made of metal film baking finish technology, which is not easy to fade. Universal design, simple installation, easy to use. Built in high performance steel ball bearings, easy to use. Specifications: Color: Black Material: ABS, PC, Metal Operation Methods: 1. Install the mounting frame in a suitable position. 2. Screw the screw down with a screwdriver. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 1 x Car Steering Wheel Ball Booster.Screw the screw down with a screwdriver. Included: 1 x Car Steering Wheel Ball Booster. Built in high performance steel ball bearings, easy to use. Due to the different display and different light, the picture may not reflect the actual color of the item.