Feature: 1. Removable and adjustable design, easy to install and use, can meet your various needs. 2. Can increase surfboard stability, to ensure safety while surfing. 3. Usually fixed to the bottom of the boat to prevent rock or other impact, maximum protection against damage to the boat body. 4. Made of high quality plastic material, sturdy, durable and long service life. 5. Small size and lightweight, easy to carry and store, convenient to use. Specification: Condition: 100percent Brand New Item Type: Surfboard Fins Material: Plastic Color: Black Quantity: 1PCS Weight: Approx. 208g Size: Approx. 21x16.5cm/8.27x6.50inch Bottom Thickness: Approx. 1cm/0.39inch Package List: 1 x Surfboard Fins