We offer high-quality glass fiber fins sourced from a production factory of a famous brand! We sell beautifully designed fins at a great value. Please take a look at my profile! [Product] Side Fins Futures Material: Glass Fiber Color: Black & Red These fins provide a strong flex and rebound thanks to the glass fiber! Perfect for 2+1 setups on longboards and mid-lengths! The side fins grip the face of the wave, allowing for responsive turns. For those who purchase a fin keyholder at the same time, we will include a keyholder in your choice of color for an additional 700 yen. Please let us know in the comments beforehand.