Options for this item: Colour:Black Body:Standard 【Materials】 ABS are made of plastic, natural permanent magnets, gutter design on the surface and large size grip is easy【Color】 Colorful magnetic structure balls and rods are easily connected and cut off, encourages children to experiment with gravity and magnetic forces【Improve creativity】 Improve children's creativity by allowing children to build different models such as cars, houses, animals, and everything they imagine is interesting, imagination, practical skills【Gift for 3+ age】 Play outdoors at home. The school is also used for kindergarten. Birthdays, Halloween, Christmas, New Year, Children's Day and other holidays are a gift to give children. .Included:1 set building block piece