HARP Premium Chamois Leather with Silicone Processing, Size 5.9 x 5.9 inches (15 x 15 cm), Set of 2, Removes Dirt from Chamois (Siliconed), Gems, Precious Metals, Glasses, Watches, Arts, and All Other Objects. It will keep the cleaning effect for a long time. Reusable Silicone treatment. ■ Use wild deerskin Kyon made in China. *Washing instructions: Wash with water or warm water using a mild detergent, and then dry in the shade and lightly dry it. The silicone treatment will last a long time.