Item Name: Paddle Board Fin Diving Central Fin Surf Surfboard Sup Fin Surfing Accessories. Material: NylonColor: BlackSize:As Picture Shown100% Brand new and high quality.Type:Surfboard Central FinFeature: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 FinNote: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