•60#- 180# (Coarse sand, for hard and rough products, Suitable for metal, wood, stone, etc)
•220# - 600# (Frequently used, for secondary grinding, Wall, furniture, stamp, etc)
•600# - 1500# (Fine sand, commonly used for grinding and polishing, Suitable for bodhi, amber, honeystone, jade, and plastic)
•2000# - 3000# (Superfine for polishing, Suitable for removing dead skin, nail buffing, etc)
•5000# -7000# (Use nanotechnology, Suitable for mirror-polishing)