Flexovit hook amp loop sanding block kit and refills flexovit 63642556830 this sanding block kit from flexovit contains an assortment of aluminium oxide abrasive sheets and a sanding block this block is very comfortable to use and has a hook and loop backing system to allow for quick and easy sheet changing flexovit 63642556830 hook amp loop sanding block kit 70x125mm 1 block 3 sheets