This mouthpiece has a shallow cup, making the high range easier to play. It can be used for all genres, from concert band to pop music. Cup Volume: B Inner Rim Diameter: 16.85 mm Throat Diameter: 3.65 mm Thank you for viewing. Please feel free to contact me if you would like to see any specific areas in more detail. There is no box, so it will be wrapped in bubble wrap for shipping.