As with the Rhino clamp, the inserts are hard and unforgiving. If your clamping to something that’s not the right size it’s going to slide or be hard to shut.

Great piece of kit, mega quick to hang fixtures with the ability to hang from my truss or change the adapter and mount to my speaker tripods

Does exactly what I wanted it to do great product

Great clamps they certainly do the job

I use these to clamp my Warlocks to the speaker stand (I use a G clamp in addition to this). These are great O clamps, and I like that there's inserts to cater for different diameter poles.