V4Cylinder Solenoid Electromagnetic Engine, DIY Integration Multi-Level Coil Kit, for Science Physics Teaching Experiment Tool College Education Model, High-Tech Toys,Integrated Boost Circuit (4Coil)

About this item

• This product is designed to be small and flexible, more delicate as an ornament, a high-tech ornament combining magnetic and electric fields, and at the same time educational, suitable for sending or students for demonstration purposes.
• This product adopts 5V power supply, out of the limitation of the socket, lower power.
• With low friction, quiet and durable features, a variety of specifications and sizes for your choice.
• The engine adds LED light design, the light comes on after power on, full of technology.
• Electromagnetic enthusiasts to develop their hobbies, improve their understanding of circuitry and increase their interest in science.