Description: Electric Unicycle Spinner Toys: 2 in 1 design, tumbler unicycle robot could be called gyro and balance unicycle, the two modes can be switched at will. Easy To Use:Tumbler unicycle robot very easily to play, simply turn on and place it on the rope or on the cup edge, it will work slowly along the route and keep balance. Remove the wheel to make it a toy, the flashing light when rotating will make it more attractive. Educational Toys: The novelty tumbler unicycle gyroscope toy with novel shape design, with a sense of technology. Disassemble and modify as you like, DIY puzzle self assembly. Environmentally Friendly Design: Unicycle spinner toys,upgrade the terminal to connect to the power supply, USB external rechargeable battery, 3.7V lithium battery is safety and more environmentally friendly. Application: Tightrope walking toy use the principle of conservation of momentum to calculate the speed balance driving mode. All items along the line that closely match the groove of the toy unicycle can be performed no matter straight line, curved line, or line. Specification: Material: Electronic Component Size:10.5cmx12cmx11.5cm/4.13inchx4.72inchx4.53inch Package Includes: 1 Piece Tumbler Unicycle Robot 1 Piece Rope 1 Piece USB Charging Cable 1 Piece Energy Rack 1 Piece Base 1 Piece Instruction Manual