Material:Magnet Size:Customized Type:Bottoman levitating Lift:100g, 200g, 300g, 500g, 1kg, 2kg Lift height:10mm, 20mm, 35mm, 40mm, 80mm Used:Exhibitions display stand Exterior:Customized Power Source:Electric Adaptor:110V~240V Patent No. ( USA):US 8,294,542,B2 Patent No. ( China):.1