Rim contours correspond to the Trumpet Mouthpiece models.
Flugelhorn Mouthpieces are available with two cup sizes, FL (Traditional "U" shaped) and VFL (Deep "V" Shaped)
Bore size on all Flugelhorn Mouthpieces is a #18
Flugelhorn Mouthpieces are available with three different shank tapers: Standard (will fit Yamaha), American (will fit Bach), and French (will fit most Cuesnon)
If you are unsure of the shank taper please contact the shop before ordering!