Durable Material: Made of premium silicone material, durable and long service life Special Design: The water bottle has a simple design, but very practical to use, giving you a good using experience Useful Function: Silicone telescopic water bottle, should be cleaned after use, and stored in a clean and dry place away from direct sunlight Fine Workmanship: Suitable for school, travel, fishing, cycling and other outdoor activities. The water bottle has fine workmanship Meaningful Tool: Suitable for travel, camping, mountaineering, hiking, sports and fitness