1) 1'' roll on ball with fitment 2) mainly used in cosmetic, deodorant, perfume packaging 3) Different color is available 1) We are ... ,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,and so onRoll on ball and holder8mm ...