Mefferts Ghost Xtreme Puzzle – With double the sides of the original Ghost Cube, the twelve-sided Ghost Xtreme is a morphing puzzle that will challenge you unlike ever before. Without varied colours or standard-shaped pieces, the only guide you have is your own skill. Inspires children’s observation, imagination and hand-on coordination. Also great for exercising fine motor skills, the ability of logical thinking and problem-solving. It is perfect ultimate gift idea as Christmas gift/ birthday gift/ festival gift.