Portable wrist strap kettle, carefully made of food-grade silicone and PP. Specially designed for sports water supply, portable drinking water and foldable function to save storage space and meet short-term sports water needs. The method of use is extremely convenient: 1. Unscrew the lid, pour drinking water and tighten it; 2. Adjust the wrist strap to fix the kettle on your wrist; 3. When drinking, suck the water outlet directly and the water will come out; 4. Clean the kettle body and lid promptly after use, dry and store. And it features an ergonomic blow nozzle that prevents air from flowing back and maintains a seal when moving.