405-051144-05621 Features: -For use with all 3M disc pad face plates, disc pads, and 3M disc pad hubs. -Use harder face plates for heavier stock removal applications. -Ripped plates result in cooler running discs. -Backup plates for fibre discs, these disc pad face plates are color coded by density. Product Type: -Coated Abrasives. Dimensions: Overall Product Weight: -0.1 Pounds.