Stack the cups to create towers, tunnels & other fun structures.
Incredibly fun building system featuring 48 colorful cups with specially designed ridges that interlock for easy, stable stacking. When the fun is done, run the cups through the dishwasher for easy cleaning and then stack them for compact storage. The specially designed ridges easily interlock for sturdy stacking. Follow the included build ideas to design volcanos or other fun objects, or let your imagination run wild with your own unique creations!