Hanayama cast metal brain teaser puzzles have been entertaining and perplexing people for years. This is a specially created bundle of 3 of the more popular medium-level difficulty Hanayama Puzzles. Includes O'GEAR, U&U and CAKE. In each situation one must figure a way to separate the pieces and to know what you have done ! Hanayama Puzzle are rated (subjectively) by the manufacturer from level 1 to 6. On this scale Level 6 is the most difficult. Level 3 & 4 Hanayama puzzles can be a very good challenge and mental workout for the average among us. These are disentanglement style puzzles. Careful, clever manipulation of the pieces is required to separate. Each of the 3 puzzles is its own unique design. NO FORCE is ever required. Generally one will find re-assembly to be a new and different challenge. Each puzzle is boxed separately so the bundle could be split among different people. Includes 3 (three) GREEN velveteen, RED satin-lined drawstring pouches for storing your brain teaser. Pouches measure approximately 3.5 x 4.5 inches laying flat. Great puzzle for ages 12 to 105 years. Official Hanayama Puzzles are packaged in the dark green box with see-through front.