The Radius 360 is a revolutionary sanding tool, with unique side-to-side, up and down, and circular mobility. The Radius 360 features a full 9 inch diameter, die-cast aluminum head that makes fast work of large surface areas. The round design virtually eliminates flipping and the associated surface scratching and gouging. The ability to change directions quickly without having to lift the pad off the wall is a huge advantage over the.. See full description for further details