Fence Post Anchor Base Brackets Strong and durable construction: Made from 2.7 mm thick metal with a black powder coating that provides uniform coverage and longlasting outdoor protection. Designed to hold fence posts, pergolas, and deck handrail rails. Adjustable fit for 4x4 posts: Accepts actual post size of 3.5 x 3.5 inches; the opposite side can be adjusted to match the size of the wooden column for a secure base. Built to support, protect, and decorate the bottom of the post. Easy installation and cost savings: Quick to fix to wood posts, decks, or concrete ground, helping to avoid demolition and reconstruction costs. Wide applicability: Suitable for repairing and strengthening posts in many settings, including porches, deck post supports, mailbox posts, table legs, terrace wooden fences, signs, and more. Use scenarios Scenario 1: Replacing a damaged deck post base on a concrete deck. Install the anchor base to secure a 4x4 post and restore railing stability. Scenario 2: Installing a porch railing. Anchor 4x4 posts to deck or concrete, with the base protecting and reinforcing the post bottom. Scenario 3: Strengthening outdoor posts such as mailbox or sign posts. Use the base to reinforce and extend post life on concrete or wooden ground.