The Gator Extra-Large Modular Mute Bag for Low Brass Players provides six large thick cotton compartments designed to securely hold six common trombone mutes. It also easily accommodates euphonium mutes. The bag features modular walls with touch-fasteners that allow for customized configurations. The modular walls plus exterior pockets allow you to store a wide range of accessories. The Large Modular Mute Bag is made of durable weather-resistant fabric and has thick plush cotton walls.