◎ You can relax and warm up to your core even on cold nights. ◎ The fabric is so soft and pliable that it requires sewing at a low speed, making it gentle on the skin. It is made with a special flannel fabric that is not commercially available and is manufactured to our specifications. ◎ This is a brown rice and rice bran hot pack made with brown rice from Yamaguchi Prefecture, salt from the Seto Inland Sea, and rice bran. My hot packs use an original blend. It's a brown rice and rice bran hot pack that warms you to the core, like a hot spring. This "core-warming" sensation is something other warming goods cannot provide. Please experience it for yourself. (It's so soft that I can't even take a perfectly crisp photo (^-^;)) Since it's very soft cotton, there may be brown cotton specks attached. ◎ My hot packs have an astonishing repeat purchase rate. Thank you all for your continued support m(__)m This is a sample photo. The contents will be filled after purchase. ◎ Please refrain from imitating my hot packs or copying my descriptions. [Duvet Hot Pack] ■ Size: 70cm x 30cm ■ Contents weight: 1000g Heat in the microwave on a plate or as is. It can be used for 1-2 years. Replace when steam is no longer produced. [How to use the Duvet Hot Pack] 900W microwave → Fold into thirds and heat for 1 minute 30 seconds, then flip and heat for another 1 minute 30 seconds. 600W microwave → Fold into thirds and heat for 1 minute 50 seconds, then flip and heat for another 1 minute 50 seconds. (Please be careful not to overheat the hot pack. We are not responsible for any issues. Please use at your own risk.) An instruction manual will be included with your shipment. Hirocchi Hot Pack Hirocchi Kairo Warming Goods, Warming Activities