Works exactly as described, magnets are just the right strength to sit on the vise jaws yet allow for easy movement. The pre-punched holes will also come in handy, very happy to have shaped them. They don't have fender ends, so make sure you insert them into the jaws correctly. I have a vise with 4" jaws, so there's about 2" of extra material, but that's not a problem for me, and if I ever upgrade to a larger vise in the future, those jaws will do. They are necessary for anyone wanting to runβ¦