Durable Material: Trumpet wah mute is made of aluminum alloy with superb workmanship; features premium composite cork pads for long-term use. Size: The wah trumpet mute measures 3.35 x 3.35 x 4.92 inches, making it easy to carry and store. Application: Compatible with most standard trumpets; this aluminum mute delivers clear sound without distorting pitch. Trumpet Straight Mute: Aluminum practice trumpet mute produces a sound considered the standard in straight mutes, ideal for many jazz musicians. Easy to Use: Helps reduce sound projection, allowing for quieter practice sessions. Specification: Material: Aluminum Alloy Size: 8.5 x 8.5 x 12.5 cm / 3.35 x 3.35 x 4.92 inches Package Includes: 1 x Wah Trumpet Mute Note: Please allow slight variations due to manual measurement and differences in display screens.