CHALLENGING PUZZLE: Unlock the mystery! Immerse yourself in the brilliant design by Jean Claude Constantin. No key needed, just a clever and creative mind. Navigate through this intelligent maze to unveil the secrets of this amazing lock.
PERFECT GIFT ITEM: Perfect to gift yourself, family, friends and loved ones, helps keep kids entertained, helps keeps adults entertained, with an added bonus of helping to keep the brain active and healthy!
CONSTANTIN PUZZLE: From renowned puzzle inventor Jean Claude Constantin