Bona Belt 10 Inch Floor Sander with Travel Base. The 10" Bona Belt is a Hardwood Flooring Belt Sander that takes a 9 7/8" x 29 1/2" Sandpaper Belt for wood floor sanding and refinishing. Bona Belt's innovations include a compact chassis for easy manoeuvring with increased power efficiency with the new PolyV drive belt.