QUICK CHANGE MINI FLAP DISC Material:  Ceramic and Zirconia,Aluminium Oxide Specifications:Extremely quick to change ,For power tools,Backing: Nylon Used on wood or metal applications and they are also good for grinding contoured and irregular surfaces. Features:Can quick shift the abrasive and ceramic materials for effciency while operating the parts.Low noise, operating friendly and quick shift. Mini-switching blades can remove burrs, clean welds and welding spatters, remove and polish wood or metal, etc. It has the characteristics of low noise, simple and fast operation. SIZE GRIT MAX/PPM TYPE 2″ 36#---600# 20,000 R/S 3″ 36#---600# 20,000 R/S PLASTIC PLATE FOR MINI FLAP DISCS  SIZE:2″＆3″