These 3-row bleachers feature a long-lasting powder-coat finish that is weather/scratch-resistant so they will look great for years to come. Sturdy Team Color™ Bleachers have a steel understructure and aluminum planks. Convenient, all-aluminum Team Color™ Tip-N-Roll Bleachers have permanent 4" dia casters for easy movement indoors or out. Assembly required. Specify Color(s) for Seat/Floor Planks and for Understructure. Truck delivery.