Trumpet Mouthpiece, Beginner-friendly, Silver-plated Brass.

The entire device is made of copper, and the surface is silver-plated to enhance corrosion resistance. It pulls down to fix the shape of the mouth, improves the endurance of the oral muscles, strengthens the biting force of the lips, and improves the concentration of the lip muscles. The force when gripping is the opposite of the force during normal training (reaction force). Every 20 seconds, it alleviates necrosis of the orbicularis oris muscle caused by overtraining and improves the endurance of the orbicularis oris muscle. The rubber band is removable and can be attached and detached. It increases the friction of the oral muscle exercise device, and the smooth surface when gripped by hand makes it less likely to fall off. It has been treated with a superior polishing process, giving the surface of the object a gloss and enhancing its overall aesthetics.