Ideal for Ender 3 Pro. No cutting required. Slightly stiffer than stock springs. I adjust the z-stop so the springs don't need as much tension to push against the bed. Otherwise they almost go under. I'm not sure if this would be an issue, but I didn't want to risk the bed deforming due to spring pressure + bed heater cycles. The bed seems to stay pretty flat. This is good peace of mind for longer prints.