You are purchasing one Trigger Clamp - Hookstyle Trigger Clamp. The clamp is made for 2" diameter Pipe or Truss.

Narrow Hook style wrap-around clamp with T-Handle for 2" TubeCompatible with F31, F32, F33, F34, and DT44P Truss Minimum Tube Size: 48mm Maximum Tube Size: 51mm Maximum Load: 100Kgs (220lbs)Profile Width: 30mm Bolt size: M10 x 30mmThread Pitch: 1.5 coarse

Weight: 1.02 Lbs. 

This clamp is brand new!