TAODAN 4PCS Buoyancy Wing Plate T Shaped Brass Rail Nuts M8 0.55x0.78inches for Surfboard and Paragliding Accessories

["Crafted from pure copper, it boasts strong oxidation resistance, corrosion-proof properties, high-temperature tolerance, and comprehensive rustproof treatment throughout.","Specifications: Material: Brass; Hole Diameter: M8; Dimensions: 14x20mm / 0.55x0.78in; Height: 8mm / 0.31in; Base Thickness: 4mm / 0.16in","The M8 T-nut enhances your watersports experience, designed for seamless integration with various hydrofoils for ultimate compatibility and a robust connection.","Suitable for: Specifically engineered for hydrofoil tracks used on windsurf boards, wing boards, kiteboards, and SUP boards.","Specifically designed for marine environments"]