Wmute Practice (Double Mute Practice) for Violin/Viola, Silver Matte. I am selling this as I haven't had much opportunity to use it. The current new price seems to be around 13,000 yen. - The "Wmutes.com" imprint on the bag's foil stamping is fading. - Although it is originally a matte silver specification, there is a mottled cloudiness as seen in photos 2 and 3, which is characteristic of silver material. There are no scratches on the metal or cork parts, and there is no problem with use. Please understand that this is a personal item stored at home before purchasing. The following is the official description: ------------------------------------- Wmutes practice mutes use rubber cork on the clip part, allowing for a dramatic muting effect compared to other mute products without impairing the original intonation of the strings. Also, unpleasant wolf tones do not occur. The clip type allows for smooth installation, and usability is significantly improved compared to conventional mutes. * There may be unevenness in the finish or small scratches during manufacturing. Please note.