Okamoto's powerful heat pack "Oniatsu (Devil Heat)" - 30 pieces. Although the sunshine feels like spring in March, mornings, evenings, and windy days are still freezing. Especially in April, it's cherry blossom viewing season! Coldness creeps in from your feet during nighttime cherry blossom viewing, picnics, and outdoor events. This "Oniatsu" is an outdoor-only type that boasts a higher maximum temperature of 79 degrees Celsius (average 61 degrees Celsius) than regular heat packs. Just slip it under your coat on a spring night when you want to dress lightly, and you can enjoy events to the end without worrying about the cold. We are selling these at a low price due to limited stock. Please stock up for future leisure activities and temperature difference対策! 【Product Name】Kai On Kun Plus Oniatsu Adhesive Type 30 pieces 【Brand Name】Okamoto (okamoto) 【Size】13cm x 9.5cm 【Color】Package: Black/Red 【Materials】Iron powder, water, activated carbon, vermiculite, water-absorbent resin, salt, natural mineral functional ore (purge) 【Condition】New, unused 【Notes】 When shipping, we will remove the contents from the outer box and carefully pack only the contents (30 pieces) to reduce shipping costs. (Please note that the outer box will not be included) For outdoor use only. Avoid using indoors or while sleeping as it becomes very hot. Always apply over clothing and avoid direct contact with skin. Maximum temperature 79 degrees Celsius, duration approximately 8 hours. Instant purchase OK.