MAGNETIC SLIDING PUZZLE - 500 LEVELS OF FUN   Magnetic Puzzle: 500 levels of play - challenges with seven difficulty levels guarantee long hours of engaging fun Educational benefits - the puzzle supports the development of logical thinking and understanding of cause-and-effect relationships battery-powered - which allows you to play anywhere you want, without the need for access to electricity   Technical parameters:         · Material: ABS         · Age: 6+         · Power supply: 2x AA battery (not included)    · &n