Thank you for looking. This is a listing for GULL fins. The size is L (equivalent to approximately 27-28 cm). There is some sign of use, but they are still in usable condition. Please check the photos for details on the condition. I am listing these at the request of my father, who has retired from diving. I do not have specialized knowledge, so I am unable to provide detailed information. Please check the photos for the condition and accessories, and purchase with your understanding. If you have any questions or would like additional photos, please feel free to comment.