With it, you can practice saxophone whenever you want to because it allows you to practice without disturbing people.<br><br>Features:<br>Made of good aluminum.<br>Designed for soprano saxophone.<br>Easy to install.<br>Practice without disturbing people.<br><br>Specifications:<br>Material: Aluminum<br>Product size: 5 * 5 * 3.5cm / 2 * 2 * 1.4in<br>Package size: 19 * 12.5 * 3.5cm / 7.5 * 4.9 * 1.4in<br>Package weight: 9g / 0.3oz<br><br>Package List:<br>1 * Mute