I have two of these shade sails, 12 and 16 foot. They’re very sturdy and provide great shade without cutting out all of the natural light. They’re easy to install, I drilled holes and screwed in hooks into my patio cover and anchored them to the ground. A strong breeze will yank the stake up so I put a large rock over the end. I love the look of them and, they’re not an eyesore that sticks out, they really add to the relaxing beachy feel we were going for. It definitely keeps the area under the patio cover a lot cooler as well!