Wooster Aero Sander for fast and highly efficient wall and drywall sanding, the Aero Sander works 30% faster than conventional wall sanders. Can fit with standard screw fit extension poles and the Sherlock GT extension poles. Additional purchases required the Wooster Aero Sandpaper 80 and 120 Grit and the Aero Duster 9.5 Inch for dusting. It's unique 9.5 Inch triangular shape to cover large surfaces and reach into corners with a Velcro hook and loop fastener for fast and easy sandpaper changes. Stable 360 degree pivot for full surface contact, will not flip or gouge the wall.