Brand Siebenstein Spiele
MPN Z3011SP
UPC 721405381432

Check the listing for details. Thales - Math Brainteaser Wooden Puzzle. Condition: New. Listed at 30.95 USD. The Thales puzzle has a unique design, where the puzzle includes 4 layers with laser engraved numbers. The 'lower' layer (the larger bottom layer) doesn't rotate, however, the 3 layer on top of it can rotate.

$18.57
$30.95