This 6 foot aluminum park bench with back is made of 2 3/8" O.D. galvanized frame with 1 1/16" cross brace and with stationary leg style for permanent installation. The seat and back is made of light weight, durable 2x4 anodized aluminum slats. This aluminum bench is great for the side lines on a sporting field or in a park. Park Tables offers a variety of metal outdoor furniture such as picnic tables, trash cans, and benches.