Hirschman Mutes "KR Indigo Big Blue" Trombone Plunger Mute

The Hirschman Mutes "BIG BLUE Indigo" Plunger Mute is the best sounding, most in tune, easiest to play, most comfortable to hold, most expressive trombone plunger that money can buy.  It is designed to work with tenor trombone AND bass trombone.

Unique features

• From low to high, the most in-tune plunger ever.  It also provides consistent pitch when switching between open and closed (tight) plunger, something essential for ensemble passages.  Better intonation means less "lipping" of notes, reducing fatigue and increasing endurance. 
• Kenny Penny™ venting system —  Some players like to drill a hole through their plungers (where the wooden stick was) and some don't. Others carry two plungers in their bag to have both.  The Kenny Penny venting system provides one penny outside the plunger and another inside.  Turning the outer penny closes the plunger hole with the inner penny.  
• Handgrip — Our large, comfortable handgrip makes the plunger easy to pick up and hold.  No more slips or drops!
• Distinctive color —  Inspired by Duke Ellington's Mood Indigo and Snooky Young's/Clark Terry's blue plungers, with a design updated for the 21st century.