We ordered extra materials for educational purposes, and are offering the surplus. You may see these around, but rest assured, we purchased them from a legitimate major wholesaler, so you can use them with confidence. This product (finger rest for the shamisen) is very easy to use, and we highly recommend it! We'd be delighted if everyone could try it and experience the difference. And we hope that you will continue to preserve the tradition of the shamisen, a Japanese art form. ⚫︎Size: Medium ⚫︎Color: Black ♦︎《Quality》 Wool: 50% Acrylic: 30% Polyester: 20%