The butterfly-type knob on the lid I have at home broke, so I purchased a T-fal lid on this site. I don't need the part other than the knob, so I'm listing this in the hopes that it might be useful to someone. The diameter is about 17cm. Since the knob is missing, I've marked it as "used with scratches and dirt," but the lid itself has not been used. I may change the shipping method from Rakuraku Mercari Bin to Yu-Yu Mercari Bin, but both shipping methods offer anonymous delivery.