An eraser type file made of elastic natural rubber. [Features]· A dedicated eraser for cleaning and finish-polishing work.· Fits curved surfaces easily and is easy to use.· Easy to cut into the preferred size.· It is clog resistant and wears away at an appropriate pace so you can always work with a new grinding surface.· Using with neutral detergents, etc., will increase effectiveness for work around water supplies.· A selection of 3 grit sizes, WA 1000, WA 2000 and WA 3000. [Applications]· Ideal for dirt removal and polishing work on metal products, resin products, etc.