... 1) We are specialize in producing plastic balls. Hollow plastic ball diameter10mm100mm, are mainly used in the ... industry of bearing.2) Plastic balls are made of different materials, such as PP,PE, POM, PA,PMMA ... Honest And Trustworthy Enterprise.Product nameSpecificationMaterialApplicationSolid ball1mm-60mmPP,PE,ABS,POM,PA,PMMATrackball,Ball valve,Bearing ... receiving your order! 6mm Red PP Plastic ball