aka "truss [syn for prophylactic]". When using a standard lighting C-Clamp on aluminum tube or truss, protects the tube from dents and gouges. Commercially available from City Theatrical: C-Clip and others,
can also be fabricated from 2" PVC pipe in a shop with a bandsaw.
See also this thread.
can also be fabricated from 2" PVC pipe in a shop with a bandsaw.
See also this thread.