Sometimes I like to see a product that solves a real problem and then wonder why you don't do it. Don't think about it yourself because it's so simple. I use this on my BMW. Is it possible to mount wheels without them? Yes. But since I only work on my car without wheel studs (mostly I work on trucks etc.) I enjoy not having to search for the right line or worry about my wheel falling off the car while I turn to go grab the bolts. You don't have to have them. But I bought it and would buy it again without hesitation.