Specification Brand : ROYALEAD BulletPoint1 : 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. BulletPoint2 : By adjusting the magnitude and direction of the current flowing through the coil, the force can be adjusted to generate Stable magnetic suspension. BulletPoint3 : Made of high quality material, thus it is . BulletPoint4 : Magnetic Levitation Coil ONLY, other accessories in the picture is not included. BulletPoint5 : Material: Metal Color : Orange ExternallyAssignedProductIdentifier : 7625030228557 ItemName : ROYALEAD 5 Pieces Copper Magnetic Levitation Coil with Iron for The Third Generation Coil ItemPackageQuantity : 1 ItemTypeKeyword : micrometer-accessories Manufacturer : HEziej Material : Metal PartNumber : 1AA800541 ProductDescription : Features: 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. By adjusting the magnitude and direction of the current flowing through the coil, the force can be adjusted to generate Stable magnetic suspension. Made of high quality material, thus it is . Magnetic Levitation Coil ONLY, other accessories in the picture is not included. Material: Metal