These are an excellent product from SONOR. They are well made, and should last. Quick to clamp the cymbal and quick to release. The only thing I noticed, is you need to make sure the clamp covers the cymbal stands thread by at least 1/2 inch, or the clamp can pop off during use. I have been using these on all my stands for some time with no problems. Another benefit, if you do drop the clamp it will not damage your drum shells the way a meta wing nut will..