K&G 5D mouthpiece for tenor trombone; rim inside diameter: Ø 25,75mm; cup depth: D (deep); medium wide rim; large shank; silver plated; Kurun & Gilbert mouthpieces are engineered mouthpieces; their design is based on years of knowledge and experience together with applied engineering principles ranging from fluid mechanics to acoustics; K&G Mouthpieces aim to offer the musician great intonation; slotting of notes, musical range, articulation, sound projection, vibration and ease of playing through its efficient design