Warm with hot water, energy-saving and eco-friendly Yutanpo (hot water bottle) size, including lid ① Navy blue with white cover Approximately 13cm tall, 9cm wide, 5cm thick ② Pink with knit cover Approximately 17cm tall, 14cm wide, 4.5cm thick ③ White with yellow cover Approximately 14cm tall, 14cm wide, 4.5cm thick ① Used a few times ②③ Unused, stored items ◆ Usage Notes ・Fill the main tank with water and check for leaks. ・Lower the opening of the cover and pour hot water into the tank opening. ・Recommended temperature is 70-80 degrees Celsius, do not fill completely, fill to about 70% full. ・Tighten the screw cap of the tank securely. Yutanpo (hot water bottle), Yutapon, hot water, hand warmer, heating, disaster prevention, energy saving, all season