The Aluminum Post Ball Cap is specifically designed for 100x100mm tubes. This cap serves as a stylish and functional finishing touch for your fencing or railing system. Crafted from high-quality aluminum, it offers durability and resistance to corrosion, ensuring long-lasting performance. The black color adds a sleek and modern aesthetic to your project. With easy installation, this ball cap securely fits onto the top of the post, providing a clean and polished appearance.