It'll get your tires off, but durability is definitely an issue. If you have a stubborn tire, the cheap plastic will flex..I've tried Park Tool's levers and they're definitely more durable than the Kool Stop's.
True measured by me weight is 41 g 32 g levers 9 g case not 26 g as listed.
Case is very nice, levers don't break apart in bike bag.
Levers are solid not flimsy, don't flex significantly under stress.
