The Park Tool Tire Lever set is the only one I will use moving forward. I used this set to install a new tubeless road tires that were hard to seat. I couldn't seat them with several tire levers that were not as durable. These did the job better than expected.
After snapping a few TL-1.2 levers on a difficult tire, I decided to try the 4.2 set. The wider profile delivers more leverage while the thinner lip is easier to get in between the rim and bead.
I have the thinner Park Tool tire levers for my road bike and got these wider ones for my new 29er. I've never had any of them break and only need one to get tires off since they work so well. Save your fingers and buy these!
They click into each other so you aren't searching for them which is handy, hopefully i never have to use them roadside. Bought them because my local community bike shop had them in their tool collection and are really EASY to use. Blue color means you wont lose them in grass.