... 56mm roll on ball with holder are available 1) We are specialize in producing plastic balls. Hollow plastic ... different materials, such as PP,PE, POM, PA,PMMA and so on. The tolerance can be ... ,35.2mm,35.56mmPE,PPCosmetic packagingGlass roll on bottle10ml,25ml,30ml,40ml,45ml,50ml,75ml, ... 80mlGlassCosmetic packagingPlastic roll on bottle6ml,30ml,40ml,50ml,60ml,75ml, ...