8 Pack 4x4 Post Base Brackets Wood Fence Post Anchor Inner Size 3.6x3.6 inch Reliable Support Dual-Purpose Screws Durable and Sturdy Material Installation Made Easy Suitable for Various Applications Effortless Installation Base Cross-section: 5.5 x 5.5 inch / 140 x 140 mm ,Kit Quantity: 8 pcs,External Dimensions: 3.78 x 3.78 inch / 96 x 96 mm,Item Model Number: QB-4in-8,Wall Thickness: 2mm,Product Dimensions: 5.51 x 5.51 x 5.51 inch / 140 x 140 x 140 mm,Internal Dimensions: 3.6 x 3.6 inch / 92 x 92 mm ,Net Weight: 22.71 lbs / 10.3 kg