Features & Details Sturdy Support: Single Product Dimensions: 6x6x2.4 inches / 153x153x62mm, Quantity: 10 pieces, Inner Dimensions of Column Base: 3.6''x3.6'', suitable for 4''x4'' columns commonly found in the market (actual market size is 3.5"x 3.5"), Provides secure and effective support, ensuring stability without wobbling. Durable and Strong: The connector base is made of carbon steel with a thickness of 0.06 inches / 1.6mm. It is built to be durable and resistant to deformation, ensuring long-lasting use. The surface is coated with a spray paint process, making it corrosion-resistant and rust-proof, thus extending its lifespan. Easy Installation: You can quickly install it following the user manual. Use a drill for making holes, and the product comes with screw holes for easy and efficient installation, saving time and effort. Complete Accessories: Our kit includes a wide range of accessories: Yellow Expansion Plugs M535 (44pcs), Black Self-tapping Screws M535 (130pcs), making installation and usage more convenient. Versatile Use: The connector base can be installed on both concrete and wooden floors and can be widely used for providing secure support in applications such as porch railings, pergolas, and columns.