These are part of a larger series of shallow techy holds designed to create a small footprint with a lot of potential for training hard technical climbing.
I was really surprised how much these holds were capable of being usable. When I first opened them I was a little skeptical, but quickly realized that they were great for technical training.
If the angle of the board is high they become footholds. For fun, I kicked the board to a 30-degree angle and found that their grade increased exponentially to double digits.
At 45 well someone better may be able to use them as handholds, but not me.