Update Le Creuset cast iron casseroles with this replacement Le Creuset Signature stainless steel 57mm knob. Le Creuset Signature stainless steel knobs are larger, taller and more ergonomic than the older style phenolic knobs and offer a much better grip, even when wearing oven gloves. Safe at any oven temperature, this stylish replacement stainless steel knob will add additional, long lasting shine to Le Creuset cast iron casseroles. This Le Creuset Signature 57mm stainless steel knob fits 24cm-30cm round casserole lids, and 27cm and 31cm oval casserole lids. Dishwasher safe. 47mm replacement knob also available.