BePuzzled Hanayama Enigma Puzzle - Level 6This is without a doubt among the most difficult of all puzzle brainteasers. And Hanayama should know. Puzzle inventor Eldon Vaughn brought this Enigma to Hanayama, the world-renowned cast metal brainteaser puzzle company and now it"s time to introduce you to its multiple curves and challenge your puzzle skills. University Games was founded by Bob Moog and Cris Lehman, who recognized a developing niche in social interaction and learning games for adults and children. University Games creates educational board games designed so that players won"t notice how much they are learning. Product Dimensions: 4.8 (L) x 3 (W) x 1.8 (H)Age: 3 years and up