Sometimes the simplest shapes offer a distinct challenge. I use these in conjunction with the HB sloper 90 and the system feet #8 on my 35 degree wall. As another reviewer said, you can wrap your thumb around the edge and pinch the hold, but on a 35 degree wall, it's still a tough hold, especially if you are standing on the system feet #8 on the same plane. At this angle, they are good for setting problems that require core tension and a focus on body position.
