These used to be the standard, but of the 3 packs I've bought this year only a handful still work. They come apart, leaving the tips inside my pedals' jacks. This requires disassembly of the pedal, sometimes replacement of the jack, to fix. I am not rough with my gear and my pedals sit in one spot. On some of them the tips will easily pull off by hand. I say go with the nicer Hosas with the all metal jacks if you know they'll fit your pedals, otherwise find another brand... these were once good and cheap, now they're just cheap.