I ordered this because my eight year old son had a very small fracture in his ring finger metacarpal. The doctor said a cast was too much, so just gave him a finger splint and told us to buddy tape, but said he couldn't play sports for four weeks. Our son was super bummed about missing practices and games, so we tried to find a removable cast or something similar and came across this. As a non-medical person I was nervous about forming the splint, but I watched the video a few times and pulled it off. (I was very careful to make sure I could take the fiberglass on and off as I went, because I didn't want to wind up in the hospital getting it cut off.) Anyway, it worked out great and we basically wound up with a removable half cast, formed perfectly to his hand and arm, that I can take on and off, using athletic wrap and tape so he's super safe and can keep playing with his teams. So this was an amazing product for us, but just required some care and caution in setting it.