Let's be honest, cutter stuff can be hit or miss. In this case though, it's a complete hit. These are the best levers out there. I can't stand flimsy fragile plastic levers so I've been torturing my rims with metal levers the last couple seasons. Then I found these, burly plastic reinforced with metal. They make me and my rims happy. These levers are a cheap way to improve your quality of life, so buy some.