This is rosin made in the USA, not available through official distributors in Japan, making it difficult to find in the Japanese market. Unused, brand new. It features a high grip and provides a bright, clear playing feel. It comes in a silicone case and has a unique structure where you roll it down for use. Perfect for those looking for high-quality rosin or those who want to try a rare rosin! This is for viola. I have multiple pieces, so please contact me if you'd like to purchase more than one. *Please note that there may be air bubbles or marks on the case that occur during the manufacturing process, which do not affect the use of the product. Thank you for your understanding.