The tabletop automatic polishing machine is operating comfortably, polishing inlays, crowns, bridges, auction ridges, bars, metal floors, etc. The clasp supporters are damaged in 2-3 places. You can soften an easy tray and place it there, then embed the clasps and polish them. For the last year and a half, I've been using a polishing compound with a little blue mixed into the black. It polished well enough, but it's probably better to replace it. The liquid compound should also be new. There are also inexpensive polishing compounds... : It has polished well until now. Thank you.