I think these are my favorite holds on our wall right now. Really good for training crimp strength without destroying your digits, and I really enjoy their simplicity. Just like the product description says, they seem to be designed for lower-angle walls. We've got a 30 (degree overhanging wall), and they're loads of fun (at this angle, one of the holds is a bit of a sloper, the rest are more incut). To go much steeper with them would definitely be a challenge.