I bought 2 sets, six clamps in total. All screw holes were very rough when received which made adjusting the clamps a bit difficult. I removed the screws and ran taps through the holes, then a sanding brush, and then some grease. They are much better now, by no means perfect but almost as good as my big brand clamps. About 15 minutes effort. If they hadn't cleaned up I would have rated them 2 stars. If you don't have faucets or have a desire to adjust them, they can still be used, but I'd…