Description: 2. Replacement screw size M6-1.0 Velcro pad is 75mm in diameter for polishing and substrate work. The side of the body is tapered inside and full velcro closure. Product Specifications: Size: Diameter 3.0 inches (75 mm), Thickness 0.6 inches (1Screw Diameter: M6-1.0 Velcro (Velcro): 3.0 inches (75 mm), Black Color: Yellow