Steel base is designed for use with Balt Rectangular Lumina Tables, Frame is made of brushed silver powder-coated steel, Design includes a stabilizing stretcher bar and four 3"" casters, two locking, so the assembled table can be rolled easily out of the way for nested storage, 1"" thick tabletop is sold separately and features an antimicrobial finish that inhibits the growth of mold, mildew and fungus on the product"s surface, SKU: SPRCH28808