Cooling sheets ideal for sudden fever, gentle on the skin and lasts for 8 hours. - Product Name: Netsu-Sama Sheet for Kids - Product Name: Netsu-Sama Sheet for Adults - Features: Gentle on the skin - Features: Cooling type - Features: Usable for sudden fever - Features: Lasts for 8 hours - Features: 5% cooling effect Unopened product. For those looking for it, it is also recommended for heatstroke prevention other than fever. Thank you for viewing.