This is without a doubt among the most difficult of all puzzles. And we should know! Hanayama puzzle expert Nob Yoshigahara found a similar puzzle many years ago, but he considered it impossible to solve at that time. Then inventor Eldon Vaughn brought Enigma to Hanayama, and now we believe it's time to introduce you to its multiple curves and challenge your puzzle skills! Measurements: 1.75 Height/Inches, 3 Width/Inches, 4.75 Length/Inches Care: Wipe Clean Country of Origin: Imported