... in the cosmetic packaging, sewage disposal, and for floating. Solid ball diameter 1mm--60mm, mainly used in the industry of ... specificationmaterialapplication solid ballsize:1mm--60mmPP,POM,PA(NYLON),PC,ABS,PE,HDPE and so onUsage:for ball bearing,cosmetic package,industrial ,track ... on Usage:floating ball,valve ball,sewage ball,cosmetic package,industrial ,track ball,and so on plastic roll on bottle ...