Simply amazing. Having only made my own holds from real rock, the texture of these is very close to the real thing. They have the advantage of being smaller than rocks that can be drilled (which tend to break), and the many color options are a huge plus. I haven't tried the UV flouro with a blacklight yet but am sure it will make for fun night sessions. The custom texture on each hold provides a ton of grip and isn't very skin friendly, making them a great training tool for outdoor climbing and skin conditioning . These would be great for beginners on a vertical wall, and challenging for more experienced climbers if set on an over hang or roof. I purchased these along with the XXL granite pinch, which makes an awesome addition for route setting. My only complaint is that there aren't more options in the Atomik granite family, would love to see every hold type with this rough texture especially some slopers, small crimps and a large boss or double-hander. Five stars, thanks Atomik!