1. This is a multifunctional cold/hot bag that can be used with any occasions. You can fill it with hot water or cold water and crushed ice. 2. Soft and elastic which efficiently prevents the water bag swell and explosion. More safe and durable. 3. Made of quality silicone+PA+PC materials which retains heat for a long time. The thick material helps maintain liquid temperature. 4. Suitable for pregnancy lactation and weaning. It can also solve some minor problems in life such as sports injuries menstrual discomfort swelling of glasses etc. 5. 300/350ml water capacity. Children should be used under adult supervision to avoid burns/frost bite. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. When children are using these products parents should carefully take care of and not leave them alone. Description: Material: silicone+PA+PC Product size: hat-131*116*57mm; gloves-133*95*57mm Battery: no Color/Style: As the picture shown Capacity: Hat-350ML; Gloves-300ML includes: 1 x Watering Bag 1 x Manual "