NEW STONE LINED New Stone Lined Trumpet Cup Mute NSL Cup Brass Instrument Fiber Mute Trumpet Cup Mute Purchased May 2021 Used a few times in performances. The following is my assessment: The cork is in good condition and has never fallen off. The sound is good and I think it can still be used◎ ¥700 discount for bulk purchase. The following is an explanation from Rakuten: New Stone Lined is a standard mute maker. Especially for trumpet cup mutes, this is a must-have. This is not a mute used to reduce the sound during practice, but a muting device intended to change the tone. In brass bands, etc., mutes are often attached according to the instructions written on the score, and are used when "cupmute" is indicated. This 102 is made of fiber, is lightweight and easy to use. New Stone Lined is a mute maker for brass instruments manufactured by Humes & Berg in Indiana, USA. Its history began in Chicago, USA in 1935. It is recognized worldwide as the most popular and practical mute. ■NEW STONE LINED USA Brass Cup Mute Trumpets New Stone Lined Trumpet Mute Cup Mute ■ 102 Cup Mute ■For Trumpet, Cornet