This Aluminum bench belongs at the ball field. The Double Shelf-Back 21 Foot Players Bench has a frame that is fabricated of 2 inch x 2 inch x 3/16 inch aluminum angle for extra long life and rigidity. The seat is a 2 x 12 inch wide anodized aluminum plank and the back rest and both shelf planks are 2 x 10 inch wide. The double wide shelf is designed for players who like to sit up on the backrests of benches, as well as provide a place to put gloves, bat bags, etc. up off the ground. Portable for convenience. Assembly required.