Libretto Aluminum Practice Mute for Trombone, AC012-5 french horn the Libretto Thumb Rest &

the Libretto Thumb Rest & Mouthpiece Cushion Set is the ultimate accessory for clarinet and oboe players

offering durability and residue-free application for effortless play

Fast acting oil

Ideal for Any Trumpeter: Standard 7C size fits most B♭ and C trumpets from renowned brands such as Yamaha

Libretto Aluminum Practice Mute for Trombone, AC012-5 french horn the Libretto Thumb Rest &BUY NOW Achieve Pure, Professional Sound with Libretto AC012 5 Trombone Mute The Libretto AC012 5 Trombone Mute delivers a refined mute effect with clear, uncompromised tone. Crafted from premium aluminum and cork, it ensures smooth airflow, comfortable playability, and lasting durability. Universally designed to fit most trombones, this mute provides stable performance for players at every levelfrom beginners in practice to professionals on stage.