Item Name: Diving Central Fin Surfboard Paddle Board Fin Surf Surfboard Sup Fin. Material: NylonColor: BlackType:Surfboard Central Fin100% Brand new and high quality.Size:As Picture ShownFeature:Works well on surfboard with single box.Class filled nylon makes the fin strong and tough.Designed for center fins like longboard and paddleboard. Packing List:1 Pcs Surfboard Central Fin Note:1. There is 2-3% difference according to manual measurement. Please check the size carefully before you buy the item.2. Please note that slight color difference should be acceptable due to the light and screen. *Please make