Bach Large Shank Artisan Bass Trombone Mouthpiece - 1G

Features:

• The Ultisan model shape and sound response is reminiscent of the earliest back mouthpiece, modeled after the 1940s and 50s with specially selected throat and back bore.
• Extra large and deep cups for deep and powerful sound. Largest and most powerful bass trombone mouthpiece in the market today.
• Diameter: 28mm
• Cup depth: D (deep)
• Rim thickness: MT (slightly thin), fairly round rim