badge button 1.material:plastic 2.Function:light up flashing 3.OEM led colors are available 4.good for club,bar, KTV use badge button -----Output 1 million units per month----- DescriptionMetal Badge MaterialFront side: Tinplate + paper printing or plastic +paper printing; PCB board + expoy plateBackside: Tinplate + pin or plastic + pin or PCB board +pinRound shape Size Diameter 20mm, 25mm, 30mm, ...