• 60 grit (coarse) for rough heavy clay or glaze
• 120 grit (medium) for general purpose
• 240 grit (fine) for smoothing 
• 400 grit for smoothing
• 800 grit for smoothing
• 1800 grit for polishing
• 3500 grit for polishing

USES:

• Smooth off high-fired clay, glaze, bisque, tile, stone or glass
• Smoothing the foot or the sides and rim of a ceramic piece
• Smooths foot to prevent scratching a table 
• Prevents foot from snagging a tablecloth
• Can be used by hand or with an orbital sander

• Can be used wet or dry (doesn't deteriorate in water)
• Far outlast sandpaper
• Far less fatigue than sandpaper sanding
• May be used by hand or installed on an orbital sander
• The velcro block may be used in conjunction or not

• Use all appropriate safety precautions
• Keep out of the reach of children