... hoursSize: 30x40cmColor: Blue, Pink, Green etc.Method of Using:The cool cushion heat absorption is the same as the weight of water ... 8 hours, so that it will give you a cool, happy day in summer. In most areas without refrigerators, when the room ... , you can use dried.For the temperature of cool cushion take 30 degrees, it feel cool when someone direct contact, but prolonged use ...