This must have clamp the x-pro clamp is ideal for all general light and effect rigging applications. This medium duty wrap around
x-pro clamp makes hanging your lighting fixtures and effects a simple task. This x-pro clamp is also compatable with the F23 and F24 series truss from Shizhan Truss.
Ideal for mobile DJ's, light riggers and theater stage hands.
Key Product Specifications:
Designed for 1 1/3" diameter truss or pipe
Load Capacity - 220 lbs
Handy and easy to use wrap around design
https://www.tytruss.com/Clamp/X-Pro-Clamp.shtml