ITEM NAME:2in1 Car Wheel Steering Spinner power handle ball Knob With Navigation Compass 2in1 Car Wheel Steering Power Handle grip Knob Power Ball & Navigation Compass SPECIFICATIONS Item name: 2in1 Car Wheel Steering Power Handle grip Knob Power Ball & Navigation Compass.The bearing-mounted power handle enables drivers to steer softly when driving slowly and parking cars. Mount the fixing rings of steering knob at the suitable point on the steering wheel and bolt up with the adjust ring at the bottom of steering knob.