The new Synthetic Cup Mute for trumpet is specially designed to be a cheaper alternative to the hand-made adjustable cup metal mute. The sound of this non-adjustable mute is perfect in jazz and commercial music and the tuning is perfect. A great mute for young players starting out on their musical journeys, and for players looking for a great value cup mute. Made from a tough and durable plastic with corks and a rubber protection ring on the bowl of the cup section. Perfect for both beginners and pros.