Stainless steel material, it won't be broken, safe and healthy, durable and easy to clean. Collapsible design, save space and convenient for travels taking, creative and practical. Come with a buckle for easy carry. An ideal accompaniment for travel Suitable for camping, hiking, mountaineering and other outdoor activities 1 x Stainless Steel Collapsible Travel Cup We care for all customer's feeling. If this product does not meet or exceed your expectations, please send it back for a refund no questions asked.