An internal aluminum memory bar holds the desired contour shape in place for sanding. And the segmented block can be set and re-set with reasonable hand force. The ability to easily grasp the generous contours of the sanding block itself reduces fatigue and ensures even-pressure sanding. The Conformable Sander uses standard 2-3/4 inch (70 mm) wide hook and loop backed abrasive paper. A thin, ultra-flexible, paper-slide interface allows the block contour to be changed without buckling or tearing the paper.