brand new and high quality Feature: Intelligent magnetic levitation. Easy to use and install. It adopts the analog circuit design, low power consumption, long-time suspension stability, with float power-off for protection circuit. The principle diagram and design materials are presented, which are suitable for students' learning of the principle of welding circuit diagram. There are two options to meet your various needs. Maglev Kit: components are plug-in form, with assembly tutorials, need to DIY welding by yourself. It is suitable for professionals with a certain electronic foundation. Maglev finished products: the assembled and debugged products can be used at hand. Specifications: Item Type: DIY Magnetic Levitation Kit Power Supply: AC-DC 12V 2A Power: app.5W Material: Metal Size: Base: 8.8x2.7cm/3.4x1.06in(diameter+height) Color: As shown Float Diameter: 2.5cm/0.9in, 4cm/1.5in No load suspension height: 1.7cm/0.6in, 2cm/0.7in Suspended weight: 150g, 300g(Optional) Optional Type: D, F Quantity: 1 Set Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 Set x DIY Magnetic Levitation Kit