Product Details:
Cairo Size: 3.7 x 4.9 inches (9.5 x 12.5 cm).
Individual Package Size: 5.3 x 9.6 x 0.8 inches (135 x 245 x 20 mm).
Individual Package Weight: Approx. 5.6 oz (163 g).
Contents: 3 pairs
Ingredients: Iron powder, water, activated carbon, absorbent resin, vermiculite, salt.
Maximum Temperature: 100°F (43°C).
Average Temperature: 88°F (35°C).
Duration: 7 hours (measured for use in shoes)
Country of Origin: Japan
Sold by: Kobayashi Pharmaceutical Co., Ltd.
JAN Code: 4901548603806
Caution to prevent low temperature burns: Low temperature burns but if the heating element is heated above your body temperature for a long time, it will rub off symptoms such as crimps/blisters. Please note that there may be low temperatures or burns without awareness symptoms. Do not use anything other than socks. Please do not use slippers, sandals, shoes with large size, or shoes that are prone to inflation, as they may cause high temperatures. Do not use when sleeping Please do not use this product in conjunction with other heating appliances as it gets too hot. Do not use for anything other than the sole of the toes. Do not use when jogging or other sports. Do not use if you have heat or blood circulation disorder such as diabetes