These are good, but only if you're drilling directly into drywall. Half of the ones I've used have made a hole, but then they wear out and can't be drilled. That makes sense since they're all plastic. However, I had to resort to other anchors several times. EDIT: I've increased my previous rating from 3 to 4 stars as I've found it very useful where previous lower quality anchors have failed - especially given that there is already a hole. Because the threads are larger, they easily fill in the void left by other failing anchors.