Be the first to Write a Review Replace the silver-plated knob on your hammered stainless steel Ruffoni lids with this elegant stainless-steel knob, and your Ruffoni lids will now be dishwasher safe. The ultradurable stainless-steel knob provides a firm grip while giving your pot or pan a new signature look. To install, simply unscrew the current knob on your cookware and screw in the new knob.