iBOARD Surfboard FCS Fins for Longboard&Shortboard,3Pcs with 1 Fin Key and 5 Screws,Replacement

【Dynamics Design】:The side fins have an angle of 5 degrees,comply with fluid dynamics,can keep the surfboard stable in the water without rollover. 【Easy to Replacement】:Each fcs fin has bolt fixed to the surfboard,fast instation and disassemble.Replacement for foam surfboard 【Portability and Functionality】:Soft and light,easy to carry.This fin fit set great for technology surfers who like to push hard against their fins and draw out their turns. 【Features and Advantages】:Provide stability for surfboard fins; maintain balance;In the event of reef or other impact,the tail fin protects the foam surfboard to the greatest extent from damage. 【Perfect service】:If you are not satisfied with our product you received, The full money can be refunded anytime in 90 days.you can send emails to us at any time,Our customer service will reply and help you solve your any problem.