I'm not sure if it's heat-resistant, but it's thick glass. It was stored in a cupboard. I'm selling it because I don't use it regularly. There is a brownish spot on the bottom in photo 5. I think there are some scratches from storage, but it doesn't feel like it's been used a lot. I think it can be used for various things like salads, fruits, and jellies. Height: approximately 4.5 cm.