This 15 foot bench without back has a 2x10 fiberglass seat and a 2 3/8 inch galvanized frame and 1 1/16 inch cross brace and portable frame for convenience. This fiberglass bench is made to be used indoors or outdoors in parks, sporting centers, soccer fields. Fiberglass has a smooth surface that is easy to clean to and maintain. Fiberglass player's style benches make great athletic benches for sporting fields and locker rooms.