["brand new and high quality\r\nFeatures:\r\nWhen 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.\r\nBy adjusting the magnitude and direction of the current flowing through the coil, the force can be adjusted to generate Stable magnetic suspension.\r\nMade of high quality material, thus it is durable.\r\nMagnetic Levitation Coil ONLY, other accessories demo in the picture is not included.\r\n\r\nSpecification:\r\nMaterial: Metal\r\nColor: Brown\r\nOutside Diameter: app.19mm/0.75in\r\nHeight: app.12mm/0.47in\r\nQuantity: 5 Pcs\r\n\r\nNote:\r\nNo retail package\r\nTransition: 1cm=10mm=0.39inch\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n5 Pcs x Magnetic Levitation Coil"]