... sizes can available 2)used in cosmetic packaging,ball valve 3)good quality Shangyu Hongda Plastics Industry Co., ... nameSpecificationMaterialApplicationSolid ball4mm-55mmPP,PE,ABS,POM,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball,and so onHollow ball9 ... -100mmPP,PE,HDPERoll on ball,Bearing ball,Ball valve,Floating ball,and so onRoll on ball and holder8mm ... with me. DEO Rollon Ball Made In China