Thank you for viewing. This is a set of two stainless steel thermal vacuum flasks with a simple design, featuring both insulation and cooling functions. The set includes one black and one ivory flask. These flasks have a mug-style lid, but also include a secure inner lid. I am selling them because they were smaller than the size I wanted. How about these for staying hydrated during this time of year!? The size and materials are the same for both flasks. - Brand: thermo mug - Color: Black - Color: Ivory - Design: Simple and stylish - Material: Stainless steel - Features: Insulation and cooling functions - Size: Φ:89mm x Height: 269mm - Country of Manufacture: China Thank you.