Excellent Jazz model, rounded rim contour. Comparison - VB12C

• Cup Diameter = 24.50mm
• Overall Diameter = 37.92mm
• Rim Width = 6.71mm
• Bore = 6.10mm
• Back Bore = V-Type

Jazz and alto trombone. Even tone quality in all registers. Commparison - VB old 11C: Schilke M

• Cup Diameter = 25.00mm
• Overall Diameter = 37.92mm
• Rim Width = 6.46mm
• Bore = 6.240mm
• Back Bore = Medium

Perfect mouthpiece for beginners.

• Cup Diameter = 25.00mm
• Overall Diameter = 37.92mm
• Rim Width = 6.46mm
• Bore = 6.66mm
• Back Bore = V Type

Small but sonorous for very good high register.

• Cup Diameter = 25.00mm
• Overall Diameter =37.92mm
• Rim Width = 6.46mm
• Bore = 6.66mm
• Back Bore = V-Type  

Super effcient. fantastic high range. Comparison - VB 6.1/2: Schilke 47. Denis Wick is better all round.  

• Cup Diameter = 25.40mm
• Overall Diameter = 37.92mm
• Rim Width = 6.26mm
• Bore = 6.24mm
• Back Bore = Medium

All round best seller as above.

• Cup Diameter = 25.40mm
• Overall Diameter = 37.92mm
• Rim Width = 6.26mm
• Bore = 6.66mm
• Back Bore = V-type

Large bore trombone. All-round best seller. Good in all registers 

 Gives medium bore trombone the qualities of a large bore. 

•   Cup Diameter = 25.73mm 
•   Overall Diameter = 39.00mm
•   Rim Width = 6.64mm 
•   Bore = 6.87mm
•   Back Bore = Barrel Medium

• Cup diameter = 25.73mm
• Overall diameter = 39mm
• Rim width = 6.64mm
• Bore = 6.87mm
• Back bore = Barrel medium

Large bore trombone. Like 5AL with modified backbore. Rich tone with improved high register.

• Cup Diameter = 25.73mm
• Overall Diameter = 39.00mm
• Rim Width = 6.64mm
• Bore = 7.00mm
• Back Bore = Barrel Medium 

Excellent Jazz model, rounded rim contour. Comparison - VB12C

• Cup Diameter = 24.50mm
• Overall Diameter = 37.92mm
• Rim Width = 6.71mm
• Bore = 6.10mm
• Back Bore = V-Type

For well developed embouchures that need a large cup on small bore trombones

• Cup Diameter = 25.90mm
• Overall Diameter = 39.40mm
• Rim Width = 6.77mm
• Bore = 7.13mm
• Back Bore = Barrel Medium 

Large bore trombone. Clear ringing sound with good high register. 

• Cup Diameter = 39.44mm
• Overall Diameter = 39.44mm
• Rim Width = 6.77mm
• Bore = 7.13mm
• Back Bore = Medium

Large bore trombone. The classic euphonium model, also good for powerful trombonists. 

• Cup Diameter = 26.00mm
• Overall Diameter = 39.44mm
• Rim Width = 6.72mm
• Bore = 7.38mm
• Back Bore = Barrel          

Wider rim and easy response for young bass trombonists. Excellent for strong euphonium players.

• Cup diameter = 26.4mm
• Overall diameter = 40mm
• Rim width = 6.8mm
• Bore = 7.38mm
• Back bore = Barrel
  

Narrower rim with excellent flexibility and easy high and low registers.

• Cup Diameter = 27.00mm
• Overall Diameter = 39.30mm
• Rim Width = 6.15mm
• Bore = 7.40mm
• Back Bore = Barrel         

Wide rim and clear traditional bass.

• Cup Diameter = 27.00mm
• Overall Diameter = 40.46mm
• Rim Width = 6.73mm
• Bore = 7.24mm
• Back Bore = Barrel          

• Cup Diameter = 27.1mm 
• Overall Diameter = 39.30mm 
• Rim Width = 6.09mm 
• Bore Size = 7.45mm 
• Back Bore = Open 

Super large for strong advanced players.

• Cup diameter = 27.4mm
• Overall diameter = 39.60mm
• Rim width = 6.09mm
• Bore = 7.45mm
• Back bore = Barrel