Product Name: Ceramic Thermal Insulation BOBO Straw Cup Cup capacity: 485ml Cup size: diameter 9.8cm / height 14cm Product material: 304 stainless steel (outer) / 316 stainless steel (inside) / PP Polypropylene/ Silicone Accessory size: straw length 15.5cm / spoon length 15.6cm Precautions: It is not recommended that you fill the cup with overheated boiling water. The pressure in the cup is too high, which will cause hot water to spray out from the cup and cause burns.