Introducing the Aqua Marina Slide-in River Fin - the perfect accessory for any river paddler who wants to navigate through rapids and currents with ease! This high-quality fin is crafted from durable materials and is designed to easily slide into the fin box of your stand-up paddleboard. Its efficient and sturdy design provides optimal performance and control, allowing you to maneuver through the river with maximum stability. Whether you're a seasoned river paddler or a beginner, the Aqua Marina Slide-in River Fin is an essential tool that will elevate your water experience to the next level. Its sleek and user-friendly design is easy to install and provides unmatched stability and control, allowing you to navigate through rough waters with ease. Don't settle for an ordinary paddleboard - upgrade to the Aqua Marina Slide-in River Fin and experience the ultimate in river paddling performance! Specifications 11” x 4” (26.8 x 11.4cm) Premium TPU material Slide-in installation Specially designed for shallow water Included in our Aqua Marina River Inflatable SUP