6063 aluminum for high strength, weldability, corrosion resistance, and long-lasting durability. Can be processed to the required length and can be welded or polished with the right equipment. The surface is smooth and seamless. Available for mechanical structural parts for precision applications. Commonly used in industry, marine, furniture, and other industries. Ideal for custom manufacturing projects such as DIY handmade projects, frames, boat models, custom models, crafts, gardening products, shop fittings, and mechanical structural components. Specifications Material: 6063 Aluminum Inner Diameter: 14 mm Outer Diameter: 20 mm Total Length: 100 mm