DANCO 5 inch X 1-3/8 inch O.D. Universal Pop-Up Stopper for Lavatory Sinks, Chrome (10555) Constructed of plastic for long-lasting durability Measures 5 in. high with an outside diameter of 1-3/8 in. on top Universal design replaces most stoppers Fits most lavatory sinks Stylish chrome finish gives an elegant look to any sink