Piston SD Puzzle

DESIGNER: Felix Ure MATERIAL: Solid Brass SIZE: 1.9" x 3.8"   Piston is renowned puzzle designer Felix Ure's most recent creation. This unique, seven-stage, sequential discovery puzzle is rated 7/10 in difficulty. The goal is to find the brass ball locked inside. Beautifully machined from solid brass and weighing in at a hefty 2.5 lbs, Piston has the fit, finish and feel that Felix is known for. Handling Metal Puzzles All metals tarnish over time. Residual oil and salt from handling speed up the process and may leave undesirable fingerprints. Occasional use of our Metal Puzzle Polishing Kit with a coat of Renaissance Wax will keep your metal puzzles in tip-top shape!