1. Brown Rice Chiro is a warm iron that uses steam and hot heat generated by heating brown rice. Unlike a warmer body surface, it is characterized by steam to warm the core of your body. You can use it again and again, so its eco-friendly. Microwave safe, no fire or hot water needed. It also naturally cools down so you dont have to worry about burning the heat even if you sleep on the way. 2. For those who have cold or stiff shoulders, it will warm up from the core of your body. It expands the blood vessels and increases blood flow which allows oxygen to pass and remove fatigue. Relieves tension and stiffness and provides a relaxing effect. It also helps you sleep better and recover fatigue and improve your immunity. 3 Directions For Use: Place the heater on the plate and heat at 600 watts for 2 minutes to 3 minutes. Please do not use it for up to 2 times continuously until brown rice absorbs moisture. 4 Storage Method: Brown rice is raw To prevent insect damage, store in a plastic bag and refrigerator, when not in use for a long time. In addition, the thermal and moisturizing capacity of brown rice gradually decreases. We ask you to replace it for 2 years. 5. Usage Notes: Microwave rated wattage, keep in mind before heating. Do not use microwave automatic heating Do not use if you are allergic to brown rice.