Le Creuset Classic Knob - Small The Classic Phenolic Knob is oven safe up to 375¿F and replaces worn or broken knobs, freshening a variety of older cast iron cookware. Fits: Round French Oven: 1 qt., 2 qt., 3¿ qt., 4¿ qt., 5¿ qt. Oval French Oven: 1 qt., 3¿ qt. Signature Saucepan: 1¿ qt. MPN:L9431N-45