Description Product Description Designed with the assistance of top professionals, this trombones sound and response will place it above the rest. One piece hand hammered bell A one-piece bell has an axial (lengthwise) seam, making it a continuous extension of the instrument's material. This results in pure, uniform resonance and superior tone. Larger bell The bell is 8 11/16" in diameter. The larger bell in combination with other design improvements, produces a singing, colorful open sound with a projecting solid core. Narrow slide Having a narrow slide results in a faster slide technique allowing the player to get around the horn easier. Rounded Slide Crook Eliminating sharp turns in the crook will open the feel and response of the instrument. Counter Balance Weight Adding a weight contributes to the trombones focused projecting sound. Slide lock The unique slide lock design on all Yamaha trombones keeps the slide locked in place and keeps it from accidentally falling. Pressure-formed tubing Perfectly rounded tubing results in less turbulence and smoother air flow. Newly designed case The new case is a compact contoured shape. Level: Xeno Tenor Key: Bb Bore ML: 0.547" Bell Diameter: 8 11/16" Shank: Medium Leadpipe: Gold brass; Fixed Body Material: Yellow brass Bell Material: Yellow brass; One-piece; Hand Hammered Weight: Standard Finish: Clear epoxy lacquer Inner Slide: Chrome-plated nickel silver; Drawn Outer slide: Yellow brass; Drawn; One-piece Mouthpiece: Peter Sullivan signature series Features: Narrow slide