15ft Double-sided canopy offers ultra-large shady place -Metal base frame and weighted sand bags for stability adding -2 fully filled sandbags provide 180lbs in total (sand not included) -Top vent design enhances air circulation for breeze enjoy -Premium fabric is wear resistant for long-term use -Hand crank mechanism offers smooth and effortless open or close -Heavy-duty iron structure with paint finish for lasting durability -Perfect for residential and commercial use in various occasions