3m × 4m Manual Adjustable Louvered Aluminum Pergola Made of heavy‑duty powder‑coated aluminum alloy, this pergola is rust‑proof and weather‑resistant for long‑term outdoor use. The top louvers can be easily adjusted via the hand crank. You can tilt the slats to let fresh air and soft light in, or close them fully for effective sun‑shading and rain protection. It can be fixed to the ground with expansion bolts, or installed with weighted base plates without digging. With a sleek modern look, it