Specification Brand : Generic BulletPoint1 : ☀The material is made of glass fiber, which combines glass fiber, which is more durable and strong. BulletPoint2 : ☀Easy to install, and can provide good support during surfing BulletPoint3 : ☀Has the good stability, controllability and maneuverability that any surfer wants BulletPoint4 : ☀During surfing or paddling, the water fins can be used as stabilizers to help the rider improve speed and steering maneuverability BulletPoint5 : ☀If you encounter some problems during the purchase process, you can contact us at any time, we will reply you within 24 hours Color : Clear Department : unisex-adult ExternallyAssignedProductIdentifier : 9466277916573 ItemDisplayDimensions_Height : 1 centimeters ItemDisplayDimensions_Length : 1 centimeters ItemDisplayDimensions_Width : 1 centimeters ItemName : Surfing Fins 1/2" Base Surfboard Tail Rudder Surfboard Tail Fins Surfing Propeller Surfing Accessories (Color : Clear) ItemPackageQuantity : 1 ItemTypeKeyword : long-surfboards Manufacturer : Lifyn2 Material : PVC Material1 : Aluminum Material2 : Polypropylene (PP) NumberOfItems : 1 PartNumber : UQCSUCFA-CLEAR Pattern : Solid ProductDescription : Material:PA6+30%Fiber glass, -Size:3.57" ,high -2 Side 1/2" BASE FINSBase -Thickness: 6.9-7.0mm