SurfPrep 5mm Red Aluminum Oxide Foam Hook & Loop Pads are an excellent choice for preparing any surface that requires nice, consistent, even cutting, flat sanding. An excellent choice by cabinet or furniture builders who must scuff sand into corners or opposing edges or sides. A must use inside drawer boxes where manual hand sanding is a challenge or where discs sanders do not allow for full coverage into a corner. Also can be used to sand detailed white wood beading on moldings. This pad will not load or pill.