I have six of these right now, I've had them for three years. They are well built and can withstand being taken down and put back on hundreds of times. I'm about to buy more of these. It's a fantastic product.

The only clamp to use for hanging light cans, effects, and controllers. Very strong, won't slip, and won't fall apart. Very secure clamp.

All of my lighting effects have these clamps on them and are attatched to my truss. The price on these is great, plus you get the inserts to fit 3 different sizes of truss! Other brands sell one o-clamp for each size truss, and they cost more too! Chauvet really impressed me with these o-clamps. A great buy that'll ease your set-up and save you money.

Very close-fitting grip, does not slide and requires very little tightening. It does not scratch the tibe that it is clamped to. Large wingnut/bolt for secure mouting of fixture. I expect this clamp will last a long time.

Chauvet Pro Clamps are a great buy. They are less expensive than American DJ or other brands. Pro Clamps come with 2 inserts, so they will fit either 1", 1.5", or 2" pipes, and it's very easy to change the inserts. Overall, I would recommend these clamps to anyone looking for quality O-Clamps for an inexpensive price!!!