Features: 1. Silicone Material: Our silicone folding cup is made of food-grade silicone. The bottle body is soft and comfortable, easy to press, and the round non-skid base design increases stability. 2. Size Optional: 320ml: Unfolded: 10.5 x 8.1cm, Folded: 8.5 x 2.5cm. 350ml: Unfolded: 10.5 x 6.5cm, Folded: 8.6 x 2.7cm. 3. Wide Application: This collapsible water cup is widely used indoors and outdoors, very suitable for camping, hiking, camping trip, travel, lunch, picnic, and sports. 4. Convenient To Carry: The coffee cup fits well in your pocket, handbag, backpack, or suitcase and takes up no space. You can use it to hold milk, and drinks, and use it as a toothbrush cup during travel. 5. Environmental Friendly: Using our collapsible cups can reduce to use of disposable cups in places like coffee shops, helping to save our planet. Specification: Material: Silicone + Stainless Steel Color: Blue, Pink, Grey, White Capacity: 320ml, 350ml Product Size: 320ml: Unfolded: 10.5 x 8.1cm, Folded: 8.5 x 2.5cm 350ml: Unfolded: 10.5 x 6.5cm, Folded: 8.6 x 2.7cm Product Weight: 81g, 75g Package Included: 1 x Silicone Folding Water Cup