The Versi-Clamp wraps around the entire range of standard truss, from 2" OD down to 1" OD, all without marring the truss. The unique 2 position latch on the link saves time when switching from 2" truss to a small truss, just connect to the second latch for the smaller sizes. The quick release handle takes only 2 turns to be able to drop the locking mechanism, and release the clamp from the truss.