If you are a beginner, you can use 7C first, that is easier to sound when playing. 3C is the for professional trumpet players. 1 x 7C Mouthpiece. 1 x 3C Mouthpiece.
3 Pack Trumpet Mouthpiece Set, 3C 5C 7C Mouthpiece with Lightweight Aluminum Practice Trumpet Mute Musical Instrument Accessories, Silver
Floweringbeter 3 Pack Trumpet Valve Finger Button Top Essential Accessories for Brass Instrument Players
3 Pcs Trumpet Mouthpiece Brush Saxophone Cleaning Supply Sound Hole
3 Slots Trumpet Mouthpiece Pouch Pouch Abrasion Resistant with Removable Wrist
3 Slots Trumpet Mouthpiece Pouch Pocket Zipper Closure Abrasion Resistant Padded
3 Slots Trumpet Mouthpiece Pouch Instrument Accessories Pouch for Saxophone
