Four powder-coated aluminum poles form a rigid frame for this outdoor pergola gazebo, creating a 12 x 10 x 7.7 in covered area for seating or dining. Thick 3.2 x 3.2 in supporting columns work with anchoring plates, pre-drilled holes, and eight metal stakes so you can fasten the structure on hard or soft ground. A retractable polyester canopy moves on rope loops and rolling pulleys, so you can extend or fold it to match changing sun and light rain. Extended eaves with locking hooks help keep the canopy secured.