InSinkErator Stainless Steel Disposal Stopper is designed with a stainless steel finish that complements your kitchen appliances and furnishings ly. It features an inside diameter of 3-3/8 inches and an outside diameter of 4-1/2 inches, making it an i fit for most sink drains. This stopper is easy to insert and remove, providing convenience and functionality in your kitchen. To maintain its sleek appearance, avoid using abrasive cleaning solutions that may damage the finish. Model Number: STP-SS