Most sanding systems use a flat surface, this can create flat spots on the panel.

These sanders work with standard 70mm (2-3/4') wide Pressure Sensitive Adhesive (PSA) sheet abrasive to form the most versatile sanding tool available! These sanders feature a 1075 tempered spring steel faceplate embedded into the urethane foam body.

You can adjust the flexibility of the sander by removing any of the three rods encased in the handle.