... ball 2.)we can do all kinds size of ball and roll on bottle product name specificationmaterialapplication solid ballsize:1mm--60mmPP,POM ... ball,sewage ball,cosmetic package,industrial ,track ball,and so on plastic roll on bottle 50ml,75ml PP,HDPE,PE cosmetic package ... ,PE,ABS,POM,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball,and so onHollow ball10mm-100mmPP,PE,HDPERoll on ball,Bearing ...