Had to cut off some of the rubber leading to the ends of the tweezers to actually get the switch puller to fit the switch. My keyboard and keycaps are a bit non-standard, the FL Esports K220 and MT3 keycaps are from Drop, so the surrounding keycaps and the plastic edges of the case itself definitely made things difficult. Not recommended for 1800 keyboards. But now the thing is also sold as a chip puller, not a switch puller.