Bach 2012 Trombone Mute Bag The Bach Mute Bags are separate carriers that make it easy to keep your mutes together, ready to go, for that last minute gig This bag fits trombone mutes and is made of tough nylon for maximum durability Velcro closures ensure your trombone accessories stay safely tucked inside This bag fits trombone mutes and is made of tough nylon for maximum durability Velcro closures ensure your trombone accessories stay safely tucked inside