5pcs The Third Generation Coil Of 100 System Magnetic Levitation Suspension Coil _x000D_ Upgraded Metal Magnetic Levitation Coil The Third Generation Coil for 100 System Generate Stable Magnetic Suspension 1XCC _x000D_ _x000D_ new and high quality _x000D_ _x000D_ Features: _x000D_ _x000D_ When a current is passed through the coil, a magnetic field is generated around the coil. This additional magnetic field can generate an external force to the upper permanent magnet, or push or suck. _x000D_ By adjusting the magnitude and direction of the current flowing through the coil, the force can be adjusted to generate Stable magnetic suspension. _x000D_ Made of high quality material, thus it is durable. _x000D_ Magnetic Levitation Coil ONLY, other accessories demo in the picture is not included. _x000D_ _x000D_ Specification: _x000D_ Material: Metal _x000D_ Color: Brown _x000D_ Outside Diameter: app.19mm/0.75in _x000D_ Height: app.12mm/0.47in _x000D_ Quantity: 5 Pcs _x000D_ _x000D_ _x000D_ Note: _x000D_ _x000D_ No retail package _x000D_ Transition: 1cm=10mm=0.39inch _x000D_ Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. _x000D_ Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ _x000D_ 5 Pcs x Magnetic Levitation Coil_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_