Outdoor Benches by Ultra Plays Systems are 9-gauge benches with backs that have been coated by 4 different durable finishes for exceptional quality. 3/4” diamond shaped expanded metal openings allow water to drain and prevent standing water. Rounded corners offer safety around playground areas. All welded frames made of 2-3/8" O.D. 12-gauge galvanized iron pipe. These benches are ideal for school playgrounds and parks.