Thank you very much for viewing this item from among our many products. This is a Transporter fin case. Size: 23x30 cm. It can hold both single fins and tri-fins. It can easily store other surfing accessories as well. The inside is aluminum, so you can put wax in it. Since I also put wax in it, there is some stickiness, but the exterior is extremely clean with no major scratches or stains. The inside has storage pockets to separate the fins. There are some scratches on the storage pockets, but there are no problems with use. Currently, it's a rare item that is not often seen around. Thank you for looking.