ERL68B Model: WF-500. For the steering wheel with cover， separate steering wheel cover off to mount the steering knob and cover up the steering wheel again. The elegant design with the luxury cross-crystal upgrades the fashion of the car， When turning the car it lessens the turning radius and helps beginners and lady drivers to drive safely and conveniently. The bearing-mounted power handle enables drivers to steer softly when driving slowly and parking cars. Clip the ring (a) and (b) on the steering wheel at a proper position， and screw the bolt up with washer to fix the both ring (a) and (b) securely. Use the provided PVC band as it is， or cut the PVC band according to the thickness of the steering wheel. Make your turning easier and relaxed. Do not handle the product when driving in high speed. (Over 40km /hour) Attach it not to disturb driving or air bad operation far safe using. A perfect item for most cars， vans and trucks drivers.