We have a 8'x12' home wall, 33 degrees. We were using a lot of small handholds as footholds, but realized that we needed specific holds for our feet. I ordered the flouorescent color so that they stand out from our regular handholds, so we don't cheat. These are very solid and even though they're angled slightly downward, they feel secure. We also put a few of these on some volumes so they're closer to level flat, and they work really well as crimps. I used regular torx type screws to hold them to the wall. I especially like that each facet of the hold is a different angle, so even though they're screw on, they offer variety.