The Jack Puzzle is composed of six different notched brass bars that interlock in one specific way to create a unified "jack" shape. Precisely milled, and weighing just over one pound, it can serve as a desk object, a paperweight, or a true distraction — but be warned, if you take it apart, you might not be able to figure out how to put it back together. 

• Solid Cartridge Brass puzzle 
• Unified “jack” shape
• 1/2” diameter bar
• Bull-nose ends, lathe-cut

Materials: Cartridge brass (alloy 260 — 70% copper, 30% zinc) 

Dimensions: 3” x 3” x 3” (assembled)