Features: Material: The column base is made of quality heavy steel, coated with black paint, which can prevent rust and withstand the heat and rain throughout the summer. Easy to Install: Simply fix the short column to the base and install using the included expansion bolts and fixing screws. Durable: This product is made of durable steel with a black finish, maintenance free, non rusting, waterproof, and resistant to cracking. It can be used for a long time. Widely Used: Column base bracket is not only suitable for column bracket, porch railing bracket, fence column base, handrail bracket, etc., but also suitable for various scenarios such as families, gardens, farms, etc. Practical: This product is durable, easy to install, and does not require much time or effort to maintain. Whether it is used for concrete floors or others, it can be very firmly fixed to the ground. Specifications: Material: Steel Color: Black Size: Bore 52mm: 110mm * 145mm Bore 65mm: 110mm * 150mm Bore 78mm: 110mm * 165mm Notes: 1. Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. 2. Please allow slight dimension difference due to different manual measurement. 1 * Mount Post 3pcs * Expansion Bolt 2pcs * Side Fixing Screw