4M KidzLabs Balancing Robot Building Kit Amaze your friends and family with this talented robot acrobat, who can perform gravity-defying tricks on a string. Learn how it works with the Earth's own invisible force of gravity. The set contains a set of robot body parts, weight capsule sets, an arched bar, a stand set, a unicycle set, string, and detailed instructions. Also required but not provided in this kit are coins and a small Phillips head screwdriver. This item is not recommended for children 3 years or younger. Challenge your child's imagination with 4M toys and kits. 4M educational toys cover a wide range of educational subjects and include science kits, arts and crafts kits, robotics kits, and more. 4M offers a wide range of toys and kits to let you build a clock, crochet a placemat, or turn your room into a planetarium--all in the name of making learning fun.