St. Louis Arena Riser Mount Rockin' Stabilizing Brackets. You are purchasing a set of Rockin' Seat Feet™/ L-Bracket Combo's for the St. Louis Arena Stadium Seats - constructed of steel with Black powder coating. These St. Louis Arena Rockin' Seat Feet™/L-bracket combo's are designed to fit the (Blue) Riser Mount stadium seats removed from the St. Louis Arena in St. Louis, Missouri. Each combo comes with 1 Rockin' Seat Feet™, 1 L-Bracket (Floor Stand), Rubber Pads for the bottom to protect the floor surface and all hardware needed to install on your seats. If you have a single seat you need 2 Rockin' Seat Feet combo's. If you have 2 seats together you need 3 Rockin' Seat Feet combo's. If you have 3 seats together you need 4 Rockin' combo's. You need 1 Rockin' Seat Feet Combo per leg. All Hardware included and you get a free Stadium Identification Plate for your set of seats! Satisfaction Guaranteed or your money Back! If you have any questions contact us at 888-789-5550 to place order