The JC Custom Ultra series of mouthpieces feature a heavyweight design with cup diameters of 32mm, 33mm, 34mm, and 35mm. The U-shaped bowl has a depth of 50mm.
The JC Custom Ultra series of mouthpieces feature a heavyweight design with cup diameters of 32mm, 33mm, 34mm, and 35mm. The U-shaped bowl has a depth of 50mm.