Mould King Tumbler Robot Building Blocks Toy with RC & APP Control, Articulation Movable and 360 Rotatable Building Set, Crawler-Type Fast Movement Building Kit for Adults and Kid Product Feature: Self-Balancing Robot: Equipped with balance module, this exclusive self-balancing robot kit is capable of 360movement. And movable arms support enthusiasts to DIY their favourite shapes. STEM Robots KitThis 566-piece police STEM robot building set with clear instruction and safe materials, make sure the safety while kids assembling independently. Let kids develop hand-skill and creativity. Multi-function Control: With remote control and App control, this RC robot for kids 8-12 allows children use app control to design a route in advance for the robot, also have gyroscope mode. Maximise the fun when you can't be with kids. Gift Idea for Age 8+: All our robots are perfect as Christmas Gifts for any fan of robotics building bricks. Extremely playable and ornamental, making it not only a robot toy but also an art collection! OUR PROMISE AND WISH: We offer lifetime customer service for our building kits. So if you have any questions or problems , please feel free to contact us. Product Specification: Product Dimensions: 7 x 4.7 x 8.4 inches Item Weight: 1.85 pounds You Get: 1 x Mould King Tumbler Robot Building Blocks Toy Before you place an order, please provide me with English information to facilitate our delivery and logistics