The first thing that grabbed my attention on this set is the comfort. Even though they are rock-styled shapes, your fingers, and thumbs just seem to find an ergonomic place. This is partly due to how far they stick out from the wall, which is 1-1/2"+.
For the beginner, this is not an intro set to pinches, but still, you should put these on your vertical wall. The beginner can rotate them to many different positions, plus with the designs being omnidirectional, you'll find a grip you love.
It's a fact many can be gripped as edges, but this is about pinch training, and the pinches are here if you don't cheat the grip.