This 4.5-inch surfboard single fin is made of fiberglass and features a gray, translucent appearance that gives it a clean, understated look. As water sports gear, it is built as a practical surfboard fin for riders who need a straightforward part with a visible, curved profile.The single fin shape and mounting base with cutout openings make it suitable as a surfboard replacement fin when replacing a worn or missing piece. The included screw adds a ready-to-install detail, while the compact 4.5-inch size makes the simple fin to match with boards that use this style of setup.Its curved form is designed to support directional control in the water, helping the board track with a stable feel. Whether you are maintaining board or preparing it for regular use, this fiberglass fin offers a simple, functional solution with the essential hardware needed for installation.
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