Long-Lasting Aluminum Stair Balusters. Built to Last with Superior Strength and Protection. Crafted from high-strength aluminum alloy, these stair balusters are designed to offer exceptional durability and corrosion resistance, making them perfect for both indoor and outdoor applications. With a robust structure and rustproof coating, they provide long-term stability, even in challenging conditions. The included #19 drill bit ensures an easy and secure installation, allowing you to create an elegant and durable railing system without hassle. High-strength aluminum for durability, Corrosion and rust-resistant coating, Includes #19 drill bit for easy installation, Suitable for both indoor and outdoor use, Versatile set for different installation needs. Color: Black.