You are purchasing a set of our Patented Seat Feet / L-brackets for (Blue and Green Riser Mounting Seats) from Riverfront Stadium. Constructed of steel with BLACK powder coating. Each set of Seat Feet/L-brackets comes with rubber pads that provide a protective barrier between the feet and your floor surface - Hardware Included.. If you have a single seat you need 2 Seat Feet/L-brackets, If you have 2 Seats connected together you need 3 Seat Feet/L-brackets, If you have 3 Seats connected together you need 4 Seat Feet/L-brackets, If you have 4 Seats connected together you need 5 Seat Feet/L-brackets... Satisfaction Guaranteed! Any Questions call us at 888-789-5550.