For the more traditional player looking for a 1-piece solution, in the Pickett lightweight blank:

The small bore tenor trombone models include:

• 5: Our largest small bore size, this offers excellent core production and balance across all registers, with a throat size of
• 5.5: Similar to the 5, the 5.5 features slightly smaller rim diameter for those looking for the added support.
• 6: Provides a more focused sound and a denser core. 
• 7: Balanced yet compact.  A great all around small bore tenor mouthpiece.
• 9: mmediate response and extremely compact tone, a fantastic alto mouthpiece.
• 11: A well balanced lead piece with a V-shaped cup to give you the zip you need.

Couple with your choice of cup depth and rim profile:

Cup Depths:

• D: Our deepest cup in our stock options, providing a very free-blowing experience.  The extra depth allows for a warmer and richer tone color in the low register, without sacrificing the upper register.
• M: Our medium cup is the most popular model.  It is a middle of the road cup designed to appeal to a broad range of performance genres.
• S: Our shallow cup provides more support in the middle and upper registers, adding some extra brilliance and efficiency.

Rim profiles:

• C: The "C" rim is our classic trombone rim, with a pronounced bite and relatively flat profile.  The classic feel will allow for instant response and crisp articulations.
• R: Our "R" rim features a rounded rim profile with a softer bite.  The rounded rim profile offers a slightly wider feel, with a little more relief entering the cup, allowing for increased flexibility in all registers.

Size Information:

• 5: Throat: 0.277" (7.04 mm)
• 5.5: Throat: 0.277" (7.04 mm)
• 6: Throat: 0.266" (6.76 mm)
• 6.5: Throat: 0.277" (7.04 mm) (6.5S is Throat: 0.261" (6.63 mm))
• 7: Throat: 0.250" (6.35 mm)
• 9: Throat: 0.234" (5.94 mm)
• 11: Throat: 0.228" (5.79 mm)

All available in polished silver and polished gold.