You are purchasing a set of 2-5 L-Bracket / Seat Feet™ Mounting Combo's for the Yellow Riser Mounting Seats from the Marriott Center located on the campus of Brigham Young University. Constructed of steel with BLACK powder coating. If you have one seat you need 2 Combo's, If you have two Seats together you need 3 Combo's, If you have three Seats together you need 4 Combo's, If you have four Seats together you need 5 Combo's... Satisfaction Guaranteed! Any Questions call us at 888-789-5550.Hardware Included.