Features: -The strainer is made of stainless steel, will not rust, corrosion-resistant, will not leave any residue (the stainless steel part will be hot after use, please use cloth to remove the filter to avoid burns.) -The glass is made of borosilicate glass, which is high temperature resistant and has high transparency, allowing you to see the internal status clearly. -It can be used to prepare both cold and hot drinks and can temporarily withstand temperatures from -30°C to 150°C. -With the filter removed, the full capacity is 500ml and the recommended capacity is 430ml. Specifications: Material: glass+stainless steel Capacity: 500ml Size: 12.39*11.5cm / 4.88*4.53in .