I can't put these little magnetic balls down. It's just fun to build custom shapes and experiment with the different stacking orientations and piece it together into weird sculptures on my desk. Then people pick it up and accidentally destroy it and apologize and try to fix it. Which can be pretty funny. I also like to make jewelry out of it and give it to my wife. I've never seen my teenagers entertained by anything more since dancing chickens. I recommend these to anyone.