These sandpaper triangles are tough and durable and will achieve a perfect finish. They are ideal for use on wood, paint, metal, and more . . . Combined with a hook and loop Velcro backing allows for quick pad change, ideal for general sanding or stock removal. The H&L backing won't separate from the pads when they get hot. These ALEKO sandpapers pads are ideal for your everyday use. Fully compatible with Draper Sealey, Bahco, Stanley, Bosch and more.