Material Our mug is made of 100 304 188 food grade stainless steel Have a smooth mirror finish on the surface Dishwasher safe Double Wall Design Double walled construction keeps hot things hot and cold things cold longer than ceramic cups Double Wall Lightweight and Durable Doublewalled makes it lightweight and reasonably sturdy Will Last for Yearsesign Double walled construction keeps hot things hot and cold things cold longer than ceramic cups Widely Use 280ml size works well for an older child or adult Perfect for using for teacoffee milk cold and hot drink Maximum Capacity 95 oz 280ml Recommend Use Capacity About 85 oz 250ml Diameter 295 inch 75cm Height 354 inch 9cm