Description: 1. This machine make it incredibly fast and easy to finish closed or open pipe/tube forms, such as railings, etc. 2. With different belts, you can rough sand and fine sand to remove surface imperfections, blend, create surface effects like stain or brush finished. All the way to mirror polishing. 3. The arms allow the belt to wrap around the surface to sontact 270 degrees circular sanding. 4. For burnishing, finishing and reconditioning stainless steel and other materials to a high gloss.