Feature: 1. High quality and environment-friendly PP material, safe and non-toxic 2. Non-toxic materials without BPA can be used again and again with confidence, which is more environmentally friendly 3. The design of hanging ring can be hung on the top of the backpack and on the belt, making it more convenient to carry 4. It can be refrigerated in the refrigerator without deformation or damage due to freezing. It can be used as ice pack cold compress. Be careful with hot wate. 5.Folding kettle, small folding volume, no space occupied, more effective space utilization Specification: Material: PE + PA + PET Color: black, white, bluered Size: 13 * 26 cm Capacity: 700 ml Heat-resistant temperature: -45 -120 Package Included: 4 * Drinking water bag Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you Please allow 1-3mm measuring deviation due to manual measurement.