It is a keychain with an organic shape in the shape of a surfboard fin. It is a perfect design not only for surfers, but also for accents on bags. It is made from marine plastic waste collected in various parts of Japan. Each of BUOY's products clearly indicates the area where the garbage is washed ashore. You can really feel the problem of marine litter in Japan. In addition, if you read the QR code attached to the product, you can see the information of the beach cleanup organization that collected each of them. By posting on SNS how the purchasers are using it, we will encourage each region. Thank you very much for your support.