... on bottle product name specificationmaterialapplication solid ballsize:1mm--60mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE and so onUsage ... And Trustworthy Enterprise.Product nameSpecificationMaterialApplicationSolid ball1mm-60mmPP,PE,ABS,POM,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball ... ball and holder8mm, 10mm,19.05mm,25.2mm,25.4mm,29mm,35.2mm,35.56mmPE,PPCosmetic packagingGlass roll on bottle10ml ...