... size of ball and roll on bottle product name specificationmaterialapplication solid ballsize:1mm--60mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE ... used in the cosmetic packaging, sewage disposal, and for floating. Solid ball diameter 1mm--60mm, mainly used in the industry of ... packagingOur products are good in quality with low prices.We look forward to receiving your order! 9mm plastic solid ball with roll on