Silicone-treated, chamois deerskin made from wild deerskin Kyon 5.9 x 5.9 inches (150 x 150 mm) (1 piece); Removes all kinds of dirt from glasses, watches, precious metals, and arts, and does not wipe off. Long lasting cleaning effect and if the leather gets dirty, you can wash it and use it repeatedly. [Please Note] Since it is processed from natural animals, there may be individual differences in thickness, color, texture, and surface texture. There may be scratches due to Kenka or injury, but the difference in the performance of the chamois is is not a defective product. About the silicone processing: The silicone treatment is applied to make it easy to wipe clean while still sticking to the surface. In addition, since the chamois fibers penetrate into the chamois fiber, the silicone will not lose its effectiveness even when washed with water.