Description: This hot water bag can be a warm and super-cute gift for your friend who is afraid of cold in winter because of its cartoon animal shape. This hot water bag, which can be placed under the quilt to resist the cold at night and allow you to fall into a warm sleep, is worthwhile to buy. With self-heating function, it is safe and convenient to use. It is made of high-quality plastic and gel material. The length of this product is 12cm and width is 10cm. It is suitable for home, office, bedroom, dormitory, etc. Item Name: Hot Water Bag Material: Plastic, Gel Features: Keep Warm, High Temperature Resistant, Leakproof Size Details: LxW: 12cm x 10cm/4.72" x 3.94"(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. How to Use: Repeatedly move the internal metal plate until the liquid begins to crystallize and heat up (physical heating). Package Includes: 1 x Hot Water Bag