The Hottie offers a safe and reliable way of achieving the comfort and warmth of a traditional Hot Water Bottle without the need for boiling water and tricky stoppers.The Hottie contains no dangerous sticky gels or wax.Heats in minutes.Reusable Thermal core.Stays warm for up to 5 hours.Heats in microwave in minutes.Safe and easy to use.No cords & portable.Patented.