Multi-Functional Practice Tool for Horn Players By attaching a mouthpiece, you can check pitch and airflow, simulating the feel of a real instrument. The upper part is extendable, allowing you to check for the presence of pressure and proper pressure. You can freely control the resistance by adjusting the screw part and closing the hole on the main body. Size: Height approx. 20cm, bell diameter approx. 8cm, weight approx. 73g, material: PETG-CF, washable, magnetic: Neodymium magnets are used for the extension part. *Mouthpiece not included. Multi-Functional Practice Tool for Horn From pitch checking to airflow control and pressure balance — all in one compact tool. Attach your own mouthpiece to practice with a feeling similar to playing on a real instrument. The extendable upper section allows you to check and adjust mouthpiece pressure for better form. By adjusting the screw mechanism or covering the air holes, you can freely modify airflow resistance to your preference. • Dimensions: Approx. 7.9 in tall / Bell diameter approx. 3.15 in • Weight: Approx. 2.6 oz • Material: PETG-CF • Easy to clean — washable for regular maintenance • Magnetic connection using neodymium magnets for smooth extension Note: Mouthpiece not included.