Please kindly noted that this item is sold by Mortess from Joybuy marketplace.Description The unique design of the muffler conforms to the shape and curvature of the trumpet. It is easy to install or disassemble at any time without hindering performance. Moreover, it can make the trumpet sound softer and reduces the volume so that the treble is not so harsh. Features -Material: ABS -Size: About 9.76X6.20X2.80cm/3.84X2.44X1.10inch -Reduce trumpet practice volume so that you will not disturb family or neighbor, it is a good assistant. -Small and portable, easy to practice outside, suitable for any occasions, has a wide range of applications. -Perfect accessory for beginners to practice trumpet. Can be given as a present to your family and friend. -Flexible and durable, will not damage your expensive trumpet while installing, you can be relieved to use -This mute will not affect the tone while dampening the volume, giving you a better usage experience.