QooMute Practice Mute for Trombone This is a trombone mute that allows for silent practice tailored to your environment by swapping out three different types of capsules. • Mute body • 3 capsules (soundproofing-focused, playing feel-focused, tone-focused) • Instruction manual and original box included It has been used only a few times and is in very clean condition overall. It will be carefully packaged and shipped. Please understand that this is a used item before purchasing.