They're great, people complaining about flying wires didn't use too many spoked wheels. I use them to clean the bead on the wheels before I put new tires on. This is the best option I've used so far. I bought a cheap red one from Revain and it only lasted 5 discs, it literally dropped the wires at every turn. I've cleaned 4 pre-paint calipers and rebuilt over 20 wheels and I don't think a single wire has touched me in that time. worth your money.