1.30mm POM,PP solid ball 2.we can do all kinds plastic ball,roll on ball,roll on bottle product name ... ballsize:10mm--100mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE and so on Usage:floating ball,valve ball,sewage ball,cosmetic package, ... ABS,POM,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball,and so onHollow ball10mm-100mmPP,PE,HDPERoll on ball,Bearing ball,Ball valve,Floating ball, ...