Eyewitness Dinoworks Perfect Cast Casting Kits combine creativity, discovery, and learning in one exciting artistic journey. First, follow the included directions to mix the Perfect Cast Casting Material and pour it into the molds. While it sets read all about what its like to be a paleontoligist in the included illustrated booklet. Unmold your creation, paint the dinosaur 'bones" and glue the flat side to the included magnets for display on most metal surfaces.