Vandoren RR200 Woodwind Instrument Cleaning And Care ProductThe reed resurface is made of a washable tempered glass and features an etched surface that is nearly impossible to wear out. The reed stick, inspired by a reed rush, is also made of etched glass. Made of a washable tempered glass Features an etched surface that is nearly impossible to wear out. The reed stick, inspired by a reed rush, is also made of etched glass and enables the player to precisely customize and personalize their reeds