... size of ball and roll on bottle product name specificationmaterialapplication solid ballsize:1mm--60mmPP,POM,PA( ... package,industrial ,track ball,and so on plastic roll on bottle 50ml,75ml PP,HDPE,PE ... cosmetic packaging, sewage disposal, and for floating. Solid ball diameter 1mm--60mm, mainly used in the ... ,35.2mm,35.56mmPE,PPCosmetic packagingGlass roll on bottle10ml,25ml,30ml,40ml,45ml,50ml,75ml ...