Comparison : Item # 421-70006, CGW 4 1/2 Hook & Loop Coarse Brown Surface Conditioning Disc
Item # 421-70007, CGW 4 1/2 Hook & Loop Medium Maroon Surface Conditioning Disc
Item # 421-70008, CGW 4 1/2 Hook & Loop Very Fine Blue Surface Conditioning Disc
Item # 421-70009, CGW 4 1/2 Hook & Loop Ultra Fine Light Grey Surface Conditioning Disc
Item # 421-70010, CGW 4 1/2 Hook & Loop Heavy Duty Coarse Brown Surface Conditioning Disc