●Set of 10 replacement belt sanders 3.9 x 36.0 inches (100 x 915 mm) ●It can be used for polishing iron, non-ferrous metals, wood, resin, etc. You can choose the granularity depending on the target ●When producing the belt adhesive interface, the polishing belt must be glued, so there may be a double fold in the process. Please rest assured that this is normal and does not affect normal use ●Ideal for paint removal, ground polishing, rust removal, and finishing. Width and seam may vary slightly depending on manufacturing circumstances. Thank you for your understanding