We adopt quality food grade stainless steel, not easy to be broken, light weight, easy to clean and carry. Such collapsible cup is necessary for the busy travelers. The collapsible cup fits your hand so you have a cup when you are out and about. The convenient collapsible size easily slips into your pocket, purse, or backpack. A great accessory to the people who are going to travel, hike, camp and attend concert. Features: Stainless steel material, won't broken, durable and easy to clean Collapsible design, save space and convenient for travels taking, ingenious and practical Come with a buckle for easy carry. A perfect accompaniment for travel. With a key ring, occupies little space in your travel bag. Clip it on your belt loop, backpack or jacket. Suitable for camping, hiking, mountaineering and other outdoor activities. 3 sizes for your choice Specifications: Condition: New Material: Stainless Steel Cup Volume: S 75ml M 140ml L 240ml Size: S The Thickness After Folding: Approx. 20mm/0.8in Diameter: Approx. 50mm/2in The Height After Stretching: Approx. 60mm/2.4in Upper Part Diameter: Approx. 47.5mm/1.9in M The Thickness After Folding: Approx. 32mm/1.26in Diameter: Approx. 63.5mm/2.5in The Height After Stretching: Approx. 78.5mm/3.1in Upper Part Diameter: Approx. 60mm/2.4in L The Thickness After Folding: Approx. 32.5mm/1.3in Diameter: Approx. 76mm/3in The Height After Stretching: Approx. 86.5mm/3.4in Upper Part Diameter: Approx. 73.5mm/2.9in Package Weight: About 68g/81g/145g How to use? Just remove top cover from the box, then extend the cup to its full height. Package Included: 1 x Stainless Steel Collapsible Travel Cup Note: 1. Please allow 0.5~1 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.