I think they are fun to mess around with...........fidget. When I was up where my kids live for a few months recently, my grands both had them and I got to where I would play with them too. Of course, one child has already almost died from one. Please talk to your kids about not putting them in their mouths. A little girl did and one of the small black pieces came out and got lodged in her throat or esophagus. She could have died.