MADE IN THE USA.  Heavy Duty Office Chair Base Pedestal with load capacity 450 pound.  This replacement office chair base is ideal for medium or large chairs with swivel / tilt / rocking plate.  It is made of Composite material and exceeds BIFMA standards.  It has an outside diameter of 28".  The legs have a standard hole of 7/16” in diameter for casters.  The center hole is 2" in diameter.