The Jack Puzzle is comprised of six different notched brass bars that interlock in one specific way to create a unified "jack" shape.
It is exactingly milled by a skilled machinist, and weighs just over one pound. A desk object, a paperweight, and a true distraction—but be forewarned, if you take it apart, you might not be able to figure out how to put it back together…
(Hand-drawn assembly instructions are included in the package)
Materials: Solid Cartridge Brass (alloy 260 – 70% copper, 30% zinc)
Dimensions: 3" X 3" X 3" (assembled) / 1/2" Diameter bar