With it， you can practice saxophone whenever you want to because it allows you to practice without disturbing people.Features:Made of good aluminum.Designed for tenor saxophone.Easy to install.Practice without disturbing people.Specifications:Material: AluminumProduct size: 9.5 * 9.5 * 5.5cm / 3.7 * 3.7 * 2.2inPackage size: 19 * 12.5 * 5.5cm / 7.5 * 4.9 * 2.2inPackage weight: 26g / 0.9ozPackage List:1 * Mute