The Practice Aluminium trumpet mute is ultra light and doesn't increase the weight of the trumpet. The bonus is that it is very compact and fits inside the bell.
It offers a significant reduction in volume with moderate resistance. with good intonation and playability. These mutes are effective tools when volume is an issue so that you can practice with the confidence that you are not disturbing those around you.
It has moderate resistance, attenuates volume and enables to practice quietly.