The garbage disposal flange features a round-shaped 3-1/2" ring (4-1/2" surface) with a 3-1/2" stopper inserted inside built effectively to drain water and help alleviate small food litter while cleaning your kitchen appliances. Available in a variety of finishes, this product will be compliant to your existing decorative items. Fits Most Standard Garbage Disposable UnitMade from solid brassMade from polished brass for its attractive golden radiance 3-1/2" Diameter Matching Accessories Available17 Gauge