I have a few students who have fidget cubes. As long as they aren't passing them around the room, they don't bother me. I have no idea if they are particularly helpful to the students who use them or not. I have elementary teacher friends who HATE the spinners because they end up getting passed around as toys and become a distraction (which is completely opposite of their purpose). They aren't expensive. Can't see why it would hurt to give it a try.