Bore: 11 mm diameter - suitable for trumpet and hunting horn mouthpiece- Practical aid for musicians to learn or optimise breathing and embouchure for playing a wind instrument at the same time- With 4 balls of different weights and a basket with a sealing cork- First, the lightest ball is placed on the vertical part of the ASTRA and then blown into the horizontal part over its own mouthpiece - as far as the generated airflow is sufficient, the ball is brought into a hovering position over the vertical part - now one can move from the lighter to the heavier balls- The basket can be used to store the balls as well as a catch basket when blowing a ball upwards, if it is put over the vertical part of the ASTRA.- Material: Wood

Heavy version- Replacement for valve covers and pushbuttons for professional look and better sound characteristics- Creates a warm, full, flexible, powerful and personal sound- Height of the lever knobs: 7.5 mm- Height of upper valve covers: 14 mm- Height of the lower valve covers: 18.5 mm- Diameter of pushbutton knobs: 17 mm- Diameter of valve covers: 23 mm- Total weight: 250 g- Material: Brass- Finish: Raw

Version lourde- Composé de capuchons et boutons de pistons- Crée un son chaleureux, plein, flexible, puissant et personnel- Hauteur des boutons: 7,5 mm- Hauteur des capuchons supérieurs: 14 mm- Hauteur des capuchons inférieurs: 18,5 mm- Diamètre des boutons: 17 mm- Diamètre des capuchons: 23 mm- En laiton brut- Poids total: 250 g