Four Dodecahedrons in a Ball, or famous Turner's Ball puzzle. Great souvenir and an exclusive gift is a real technical challenge for every experienced machinist. Manufactured from the single solid block of 6061 aluminum. There are five objects, all separated. All inner dodecahedrons can be moved and rotated freely, but can't come out. Perfect brain teaser. The outer ball is 2", or 50mm diameter. Making this puzzle is much harder than making Cubes in a Cube, because the precise sphere has to be made first. Than, dodecahedron has twelve pentagonal faces compared to cube having just six ones. This doubles the complexity and accuracy requirements, as well as the lathe work. High quality, precise cut, very smooth and shiny surface, largest number-of-objects to size ratio. Made in Arizona, USA.