I'm using these on K&M stands in a studio environment. Perfect for keeping cables neat and tidily fixed to the stand.
For live use (constant setting up and tearing down), not so useful and a bit fiddly to use, so I wouldn't bother.
Seems sturdy enough, though I did manage to break one when removing it from the stand. However, I still rate the quality as being good as I put the breakage down to me being careless.
Would happily buy these again as and when needed.