General description Made from sturdy carbon steel, the VEVOR Post Base provides durable and rust-resistant support for various structures. These connectors are designed for easy installation on both concrete and wooden floors, making them versatile for fixed installations in pergolas, porch railings, and more. Technical specifications Model: QBLZ-4in-2 Main Material: Carbon Steel Quantity: 2 pcs Net Weight: 4.7 lbs / 2.15 kg Product Dimensions (per piece): 3.8 x 5.5 x 6.4 inches / 96 x 140 x 163 mm Inner Dimensions: 3.6 x 3.6 inches Wall Thickness: 0.08 inches / 2 mm Compatibility and accessories Recommended for use with 3.5 x 3.5 inch columns Complete set of accessories included: Dovetail Screws M525 (18 pcs), Thin Wrench M8 Open-End (1 pc), Serrated Sleeves M8 (9 pcs), Self-Tapping Screws M860 (9 pcs) Installation Quick installation following the user manual Use a drill for making holes Pre-made screw holes for convenient assembly Usage Suitable for both concrete and wooden floor