Griego DECO 0.25 Silver-plated SP Large Bore Bass Trombone Mouthpiece ★ Rim Diameter: 29.39mm ★ Throat: 8.08mm * With the new engraving, the characters are wider than the old specification. ★ After purchasing this used item, it has been test-played a few times. * Discarded by a professional musician. * There are a few spots on the shank where the plating appears to be peeling slightly, but this does not affect playability. 【 DECO Model 】 Griego's unique heavy type. It has weight, and you can get a focused sound with a core. 0.25 is the largest size, and it has a sense of stability and capacity that doesn't break down even at high volumes. Ideal for bass trombone players seeking a large capacity & heavy setting.