The Hercules tray brainteaser consists of colored metal pieces, identical in size and shape. There is only one way to fit them all into the 4-1/2" square wood tray. Designed by Jean Claude Constantin. Solution included.
Product Reviews
hercules puzzle
simmply amazing and fun. bought one for me. then bought four more for my family. wanted to drive them crazy. hours of fun. hide the answer. 68 year old grandma