They fit a little snugly on the standard Switch Pro controller shells so you can buy an extra shell or grind the inside of the rings on the stock shell. For example, if I pull the analog stick too hard, it can fly through space. It would be nice if they could be locked in place a little better. Otherwise they are perfect. The concavity of the sticks is much nicer and they have a better grip than the standard sticks. It also solves the problem of dust created by sticks rubbing against the body. They are polished and low-friction. I will say that I only use low profile racquets. Maybe they could offer an even cheaper set right now with them!