Tyre Lever set - Long
Here's a set of longer plastic tyre levers. Their length means that you get good leverage on stubborn tyres without wrecking your hands. They also have a nice shape at the tip for hooking onto your tyre.
As with all things plastic, these are more flexible than metal tyre levers. That also means you are less likely to deform a rim. Lots of force on the lever can break it, but if things are bending too much you should be changing your approach - not pushing harder.
We have personally been using these levers for years now and they are a welcome addition to our store :)