Ancient Metal 12 pc Other Description Travel through the Copper, Bronze, and Steel Ages with this set of 12 metal disentanglement puzzles that range from easy to difficult. Product Details Weight 16.00 oz Format Other Product Type Games Toys Collection $5 to $20, Project Genius Age Range 10, 11, 12, 13, 14, 15, 16, 17, 18, 8, 9