The Seventh Generation Mute Mate (Gen 7) for Trumpet is designed for the pit orchestra or jazz musician who needs to use four mutes. The new Gen7 adjustable clamp fits music stand shafts from 1/2" to 2".  It includes a 2.5” ring (all rings are rubber coated for protection), three 3.5” rings (with an accessory bag for one), The  Mute Mate Gen7 for Trumpet gives you a sturdy and handy place for times when you need to four bring mutes to the gig. Designed by a jazz trumpeter, the Mute Mate Gen7 attaches in mere seconds and remains sturdy throughout the entire performance.  Stable and easy-to-use, the Mute Mate Gen7 was made by professionals for professionals.