abrasive disc(velcro disc,sand disc) in different size and grit. 140x140x80mm .abrasive disc(velcro disc,sand disc)material: aluminum oxide,silicon carbide,Zirconium aluminumgrit:40 ... -open,colse,openbacking:vecro(loop and hook),self-adhensive(PSA)hole:with or withoutcolor:red,white,black,yellow,green,orangecoated ... more information please feel free to contact us. abrasive disc(velcro disc,sand disc)