I didn't use it much, so this is just my subjective opinion, but it's in beautiful condition. Product Number: 102 Material: Fiber [Product Description] Since its founding in 1935, New Stone Lined Mute has supported the golden age of big bands, stimulated the imaginations of various musicians, and continued to captivate audiences. It boasts an overwhelming share in the jazz world and studios. It is also a standard in wind orchestras and is extremely popular as a super-classic mute. Using New Stone Lined's unique fiber material, it is a mute that can be used in any genre. This is a classic model that provides a rich muted sound. It can be used for both solo and ensemble performances. N.S.L.MUTE TPT CUP Thank you.