Precision-machined solid metal bars: Ensures durability and a satisfying weight for an engaging tactile experience
Six uniquely notched interlocking bars: Requires advanced spatial reasoning and patience to assemble
Develops natural patina over time: Adds a unique, timeless aesthetic as the puzzle ages
Hand-drawn assembly instructions: Supports solving without external aids, enhancing the challenge
Versatile desk object: Functions as a paperweight or conversation piece in addition to a puzzle
Summarized by Shop
The Jack is a six-bar interlocking burr puzzle in machined brass. Pulling it apart takes a few seconds once you see the move. Getting it back together is the actual puzzle. The bars are cut on a Swiss machine and are heavier than they look, with a finish that develops a natural patina over time. The classic six-bar burr is one of the oldes
