Junk pressure cooker. Used only twice. Found it while cleaning out the storage room! The box was dirty, but the inside is new. I immediately tried to make baked sweet potatoes by putting sweet potatoes in and heating them on high for a few minutes, but the bottom of the pot bulged and it started to wobble a bit. It's a shame to throw it away after only one use, so I tried cooking daikon radish and chicken wing tips in it again. It cooked deliciously, so it seems like it can still be used. Cannot be used with IH (induction heating). Please understand that this is a junk item before purchasing. No instruction manual.