This "cooling gel" makes your baby comfortable for going out in summer. It can be used as a baby pillow by wrapping it in a towel or gauze, but it can also be used as a baby pillow, as a baby carrier, a child seat, or a stroller. Freezer Time: In the home freezer, it will fully freeze in 8 hours or more. ※Changes depending on your home freezer environment. The time you need to freeze 200g of water without the change.