It's a pretty rare occurrence, but if you should happen to break an Ultimate Support stand, we probably have a replacement part to save you the cost of buying a new stand. The 13519 is a collar clamp for the TS-80B, TS-80S, TS-88B, TS-90B, TS-99B, TS-99BL, TS-100B, TS-110B, and TS-110BL model speaker and lighting stands.