Hercules stand for 3 mutes

Hercules HA-100 mute holder
Support for 3 mutes and accessories. Fits on any stand or music stand.
The HA-100 stand  is designed for cornet, trumpet, trombone or horn mutes.
 
Features:
The rings are covered with specially formulated foam rubber.
The HA-100 has a 270° swivel angle.
It connects to most music stands and microphones with a shaft diameter of 8 mm to 30 mm (0.31" to 1.18").