Widely Used: Ideal For Woodworking, Hobby, Arts And Crafts, Auto Body, Drywall, Shop And Automotive Use Hook And Loop Design - Hook And Loop Function Prevents Pad Shifting And Spinning, Replace The Foam Sanding Blocks Easily And Quickly; Excellent Performance: Sanding Blocks Are The Perfect Companions For Sanding Discs. Different Shapes Can Satisfy The Polishing And Grinding Of Flat Surface, Corner And Groove Position From Different Angles; Flexible PU Backing Plate: The Backing Plate Is Made Of Polyurethane (PU), Flexible And Very Durable, To Dampen The Vibration; Grip Comfortably: Constructed From Lightweight Medium-Hard Nylon Foam So You Can Apply Pressure To Any Wood Surface You Are Sanding Without Experiencing Fatigue; The Top Of The Pad Includes 3 Finger Slots For Extra Grip And Even Control.