【Kira】For Violin, Viola, and Cello Retail Price: ¥6,600 (tax included) + shipping I purchased multiple, but I have some unused ones, so I'm putting them up for sale. As a rosin for stringed instruments, it has good grip and I think it's a good product that allows the instrument itself to resonate fully. The following is from the official website: 【Kira】Sparkle As the name suggests, it's a rosin with a sparkling, shimmering high tone, and sensitivity and delicacy. However, it doesn't have a thin sound, and it has a grip that allows you to play all instruments, from violin to cello, according to the amount of hair on the bow. ■Characteristics of Kosyun Rosin - Made based on natural rosin aged naturally for several decades - Composed of very fine particles, it brings out all overtones - The sound starts very quickly and is also sharp - You can play any type of string naturally without difficulty - Achieves solid PP and sufficient FF without being artificial - Works the same way for everything from violin to contrabass - Does not melt or deteriorate at room temperature even in summer