... X glass beads with the quality of clean,transparent,no bubbles and impurity. Widely used in sandblasting,polishing,grinding. H& ... X glass beads with the quality of clean,transparent,no bubbles and impurity. Widely used in blasting,polishing,grinding etc. ModelMeshSize ... UsageGrinding MaterialBS6088 British StandardAASSHTO M247 American Standard High Quality Glass Beads for Grinding, blasting, polishing