Features: 1. FOOD GRADE STEEL: The double wall insulated construction coffee cup is made of 100% 304 stainless steel, which is drop-proof and durable. 2. PREMIUM INSULATED COFFEE CUP: Double-walled construction offers better insulation than a regular coffee cup, keeping drinks super hot/cool, while the outside stays cool to the touch. 3. SMOOTH INNER. WALL: The inner wall of the Espresso cup is polished smooth, the outer wall of the coffee cup is frosted to prevent skid. 4. EASY TO CARRY: The insulated cups with the size of 6.1 x 6.2cm, is great for travel, commutes, and outdoor activities. Easy to storage, and easy to clean. Specification: Material: Stainless Steel Product Color: Black, Red, Dark Blue, Product Size: 6.1 x 6.2cm Product Weight: 66.8g Capacity: 80ml Package Included: 1 x Coffee Cup