handing easily , save time provincial effort ,and yield twice the result with half the effort when together with rubber pad. Velcro sanding discsMaterial:aluminium oxideSize:4"(100mm);4.5"(115mm);5"(125mm);6"(150mm);7"(180mm);8"(200mm)Grit:36#,40#,50#,60#,80#,100#,120#,150#,180#,240#,320#,360#,400#,600#Packing: 2000PCS/CTNVelcro sanding discs is made through the special process which basis on ...