Metal Knob Handle Rustproof: The metal knob handle features a chrome finish to enhance its durability Compatible with 4" Center Faucet Usually: This replacement handle is typically compatible with 4-inch center faucets, as illustrated in the accompanying picture. Please note that the faucet is not included. Easy to Install: Simply loosen the old knob using a screwdriver and remove it. Then, install the new one and tighten it securely CAUTION: Please verify your ON/OFF directions before making a purchase. If it is opposite, please purchase both the hot and cold knobs and then swap them Sepaitek Metal Knob Faucet Handle, Commercial Faucets Parts Replacement Handle, A pair of Hot and Cold Knob Handles