Thank you for viewing our products. This is a collaboration item between Pyrex and the popular Korean cafe Knotted. It is a 1000ml measuring cup. This Pyrex measuring cup boasts durability with its heat-resistant glass material that can withstand environments up to approximately 100°C. I purchased it at Lotte Mart in Korea. It is a new, unused item, but it has been stored at home. Please refrain from purchasing if you are sensitive about this. There are no smokers or pets in my home. Thank you for your consideration.