Dynamics Design: The side have an of 5 degree, conforming to fluid dynamic, can keep the surfboard stable in the water without rollover. Easy to Replacement: Each of has bolts fixed to the surfboard, you can fasts instation and disassemble. Replacements for foam surfboard. Portability and Functionality: Soft and light, easy to carry. This fits set great for technology-surfers who like to push hard-against their and draw out their . Advantages: Provide stability for surfboard ; maintain balance; In the event of reefs or other , the tail protects the surfboard to extent from damage. Perfect Service: Your satisfaction is our top priorities. you are not satisfied with our product or have any questions, please feels-free to contact-us.