... dispersing high viscosity materials.2.Grinding beads sizeφ0.1,φ0.2,φ0.4~φ0.6,φ0.6~φ0.8,φ0.8~φ1.0,φ1.0 ~φ1.2,φ1.2~φ1.4,φ1 ... .4~φ1.6,φ1.6~φ1.8,φ1.8~φ2.0,φ2.0~φ2 ... .7Flexural strength: 900Mohs Hardness: 9 Zirconia Grinding Media Ceramic Beads (0.8)