20PCS 4-1/2 dischi abrasivi ruote 4,5 dischi a lembo 40 60 80 120 grana per smerigliatrice
About t he Structure of Flap Disc : 72pcs small 24x18mm cloth backing aluminum oxide sanding discs are bonded tightly on the plate. This stable structure confirms a 30% longer life span than conventional flap discs.