4-way connector design: This heavy-duty 4-way pipe connector allows for multi-directional connections, providing strong structural support and stability. Heavy duty, not easily deformed. Boat handrail fitting 4-way pipe fitting: Made of 316 stainless steel for corrosion resistance, able to withstand harsh ocean conditions. Even after years of use, it remains as good as new. For 1 inch (2.54 cm) round tubing. Multipurpose: Great for harsh marine environments, boat railings, and outdoor applications. Besides that, you can also assemble the DIY frame according to your needs. Beautiful and versatile: Surface mirror polishing, high precision, smooth, good flatness, attractive appearance. Comes with installation wrench: Easy to install, including an L-shaped hex key wrench. Boat handrail fitting 4-way pipe fitting, made of marine-grade 316 stainless steel, which is corrosion-resistant and rust-resistant, and sturdy. Surface mirror polishing, high precision, smooth, good flatness, attractive appearance. Features: