... .2mm,35.56mm roll on ball with holder are available 1) We are specialize in producing plastic balls. Hollow plastic ball diameter10mm100mm, are ... 1mm--60mm, mainly used in the industry of bearing.2) Plastic balls are made of different materials, such as PP,PE ... .2mm,25.4mm,29mm,35.2mm,35.56mmPE,PPCosmetic packagingGlass roll on bottle10ml,25ml,30ml,40ml,45ml,50ml,75ml,80mlGlassCosmetic packagingPlastic ...