1)PP,HDPE water cover&floating ball 2)china manufacturer for ... name specificationmaterialapplication solid ballsize:3.5mm--55mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE and so onUsage:for ball ... so on hollow ballsize:9.5mm--100mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE and so on Usage:floating ... on bottle 30ml,40ml,50ml,60ml,75ml,120ml,180ml PP,HDPE,PE cosmetic packagemedical package glass roll on bottle25ml, ...