the Bosch Fast Sanding Hook and Loop Sandpaper: Up to 2x Faster than C420. Designed for rapid sanding of both paint and wood surfaces, it delivers exceptional abrasion with Bosch Surface Structure. Thanks to grain alignment during production, it ensures an aggressive cut for efficient results. Simply stick it on with hook and loop for quick and hassle-free attachment. Elevate your sanding experience with Bosch Fast Sanding Hook and Loop Sandpaper, achieving faster and smoother finishes with ease.