abrasive Disc(velcro Disc,sand Disc)material: aluminum oxide,silicon carbide,Zirconium aluminumgrit:40 to 1500size:3" to 9"density: semi-open,colse,openbacking:vecro(loop and hook),self-adhensive(PSA)hole:with or withoutcolor:red,white,black,yellow,green,orangecoated:with or...