1. High quality construction - Made from high-quality plastic with good abrasion and impact resistance - Designed to withstand water exposure with a smooth surface that sticks well to the board - Provides greater stability and balance on the board - Helps reduce the risk of reef impact during paddling 2. Upgraded performance - Fully improved design with less elasticity and more rigidity - Reduced breakage and deformation for longer use - Enables easier acceleration of the board while surfing - Delivers a more reliable and enjoyable surfing experience to catch the waves and ride the sea 3. Sleek and functional design - Paddle-in style with a top fin - Streamlined appearance aligned with water sports physics - Improves board agility and increases turning freedom - Supports safer, more controllable surfing 4. Easy to install and remove - Features a locking safety reinforcement buckle - Attaches to the base at the rear end of the surfboard - If not needed, the clip on the fin can be removed - No additional tools required for attachment or removal Use scenarios - Coastal paddling near reefs: the fin adds stability and helps absorb impacts while paddling - Wave riding: upgraded rigidity supports better speed and easier wave catching - All-around SUP surfing practice: enhances turning control and overall maneuverability for safer sessions