Specifications: The updated version of the hot water bottle is made of food grade silicone, which is odorless and recyclable. Wide mouth design, it is easy to fill the water. The widen edge of water injection can avoid the danger of leaking, guaranteeing and avoiding scald. Large diameter water injection is convenient and hot water can be poured directly. Technical Parameters : Injected Volume:3/4 Water Temperature: 80 Degrees Celsius / 176 Fahrenheit or so Injected Volume while Heating: up with cold water (3/4) Heating Power: shall not exceed 1500W Heating Time: not exceed 3 minutes Soaking Time: 2-3 hours Water Injection Steps: 1. Place the hot water bag into the knitted cover. 2. Add 80 Degrees Celsius/ 176 Fahrenheit hot water into it and keep 3/4 full. 3. Eliminate excessive air and firmly tighten the lid. Item Name: Hot Water Bag Water Bag Material: Silicone Features: Portable, Leakproof, Hand Warmer Size: 24cm x 9.5cm x 2cm/9.45" x 3.74" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hot Water Bag 1 x Knitted Pouch