Deodorant rollon ball 1) Use for cosmetic packaging 2)Various colors and sizes can available ... ,POM,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball,and so onHollow ball9.5mm-100mmPP,PE,HDPERoll on ball,Bearing ball,Ball valve,Floating ball,and so onRoll ... on ball and holder8mm, 10mm,19.05mm,25.2mm ...