The Ultimate Brick Makers give kids of all ages a new way to create and build with the award-winning Mad Mattr compound. Children and adults alike can now make their own buildable, stackable bricks using The Ultimate Brick Maker and any (or all) of Mad Mattr colors. Build your own custom constructed brick creations…..then smash it up and start again! The Ultimate Brick Makers are designed specifically to be used with Mad Mattr compound to help you create your very own building blocks! The Ultimate Brick Maker allows you to create 1 brick at a time and comes with a 2 oz bag of blue Mad Mattr! For ages 3 and up.