The 490-11322 from Sioux Chief is a Closet Flange Support Kit. It allows to replace rotted-out flooring around a closet flange or to support the flange when the cut-out hole is too big. Two-piece 18-gauge heavy-duty zinc-plated plates. Includes (4) flange screws and (6) floor screws. Overall dimensions (W x L): 7" x 9.25".