two matching robust late 19th or early 20th century antique american industrial reinforced cast iron textile factory table bases attributed to the sani-product co., chicago, ills. the fully adjustable bases or legs contain a multitude of slots and holes for support rods and/or stretchers. the perforated circular-shaped attachment was designed to hold spools of thread. both the height and length of each leg can be adjusted by sliding the overlapping components vertically or horizontally. the baked black enameled finish has remains in great overall condition with very little, if any rust evident. the double-sided foot pads provide secure rigidity and structural support when set against the floor. the machine table bases are in great overall condition with no cracks or breaks evident. multiple pairs available. measures 45 1/2 x 2 3/4 x 27 1/2 inches.