The practical and flexible holder for 3 mutes can be attached onto tubes with a diameter of 7 to 30 mm. The holder is suitable for all common mutes for trumpets, cornets and flugelhorns. The individual holder rings (2 large sized, 1 small sized) are completely rubberized to protect the mutes from scratches and collapses for an easy transport. An additional 3.75-inch ring is available (sold separately), see item 118285. -the manufacturer