I got this to put in my SUV after I had surgery on my left shoulder. It made a big difference in my ability to turn while driving and, especially, getting into and backing out of parking spaces. It made driving MUCH easier while my shoulder was healing. My only complaint was that no matter how much I tightened the bolt on the clamp, the knob would loosen and slide around on the steering wheel. Not a lot, but enough to be annoying. I was constantly trying to tighten the bolt that holds the clamp See full review