The twisty Ghost Xtreme Brainteaser Toy starts out as a 12-sided dodecahedron, but quickly morphs into a jumble of interesting geometric shapes once you start interacting with it. What makes the black-and-white Ghost Xtreme puzzle extra-challenging is the absence of multi colors to act as guides, and the way the sides move on an irregular axis. For ages 14+. The Ghost Xtreme Brainteaser Toy is made of plastic and measures 4h x 5w x 4"d.