Great clips! I needed a clip that could open and close around items and they worked great. If the screw driver is difficult to turn, simply move it back and forth, even fully open (start over), and it will return to its original position. I used them to attach a hard-coated wire to a sturdy wrought-iron pole nearby to hold the phone in any position. This technique is 100% stable. I used pliers on the last few turns. PERFECT! I'm so smart! Good product, perfect for my application.