description: brand new and high quality Material: ABS Color: green/orange Product size: 13x17x5cm Product Type: Electric anti-collision maze toy Body battery: button battery Circuit principle: When the metal hook of the flashlight touches the conductive metal wire, a circuit is formed. Under the control of lC, when the power is turned on, the speaker emits a tiger roar. Education kit: Every for time you for play a game, you can create a new shape to test your balance. Different shapes have different difficulty levels. Develop children's hand-eye coordination and attention through practice Appropriate situation: This scientific toolkit is suitable for experimental supplies in physics classes, parents teaching children the basics of electric current, and gatherings of young physicists who love physics. Build your own ideas and learn how to connect circuits. Challenge friends and family, it's cool The perfect gift: This physics experiment kit is suitable for birthday gifts, Christmas gifts, party gifts, etc. Suitable for children who like physics, especially children Reminder: If you have any questions about the product, please feel free to contact us! note: Transition: 1 for cm = 10 mm = 0.39 inches Due to manual measurement, please allow an error of 1-3mm. Make sure you don'for t mind bidding. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thank you! The package includes: 1 set of electric anti-collision maze toys