8X19cm White 5V (8W) Graphene USB Heating Pad, for Low Voltage Heating, with 1.5-meter USB Cable, Ideal for Heating Insulation Box, Mouse Pad, Foot Warmer, Electric Heating Belt, Electric Gloves, and Knee Warmers. Graphene Sheet: High thermal conductivity allows for efficient heat transfer, providing quick warmth and excellent heat retention. It is flexible, ultra-thin, and highly durable. Lightweight and thin, with a 1.5m USB type, making it useful in various situations such as a portable hand warmer or during emergencies. Operation confirmed. It maintains stable and consistent heat, similar to a typical disposable hand warmer. #HandWarmer #DisasterPreparedness