Silicon Carbide Velcro Discs Grit: P36-P1200 Hole: 1,4,5,6,7 holes Size: 100mm,115mm,125mm, ... Velcro backing Silicon Carbide Velcro Disc Grain Backing Diameter X Hole sizeGrit No.SI. Velcro 36406080100120150180240280320360400VELCRO DISCS100MM/4.0"X16MM 115MM ... salver and self-adhesive pad used for precision polish of inner hole and flex tube-- Ideal for polishing and grinding the automobile ...