Price not negotiable. Purchased from a retro shop and displayed in my room for a long time without use. The pop design is very Showa-era and cute♡ I don't think it's unused, but I personally think it's in good condition for its age. I haven't put hot water in it, so I'm not sure if it can actually be used, but the rubber packing inside and the feel of pressing the lid suggest it should work without problems. However, I think it's best to consider it as a display-only collectible. Capacity is unknown. I apologize, but please judge from the size.