The original Tourte mute is the world's most popular orchestra mute! The original Tourte orchestra mute’s elastic molded rubber construction allows for ease and speed of application and removal, as well as superior sound by avoiding rattling and contact with the string where imitation mutes don’t. A small pin on the top makes it easy to remove and slide down the string when not in use. Used for chamber music, orchestra and personal practice - light muting level. Original: Not a Copy! Fits 4/4 - 1/8 size.