Handmade Rice Bran and Brown Rice Warmer For dealing with temperature differences and for those with stiff shoulders and necks. It's long, so it's also recommended for men! The cover is beige checkered. It can be removed and washed. What is a Brown Rice Warmer? It's an eco-friendly warmer that can be heated in the microwave and used repeatedly. The moist heat from the brown rice warms the body from the core, gently reaching and warming deep inside. It can warm you from the inside out. The moist heat from the brown rice gently warms shoulders, neck, abdomen, back, under the buttocks, and can be used as a groin warmer. You can even sleep with it in your futon. In the summer, you can put it in the refrigerator or freezer and use it as an ice pack. Long size for lower back pain and stiff shoulders 52cm x 12cm Thickness: Approximately 2cm Weight: Approximately 450g Contents: ・Brown rice ・Roasted rice bran ・Coarse salt ・Red pepper (insect repellent) How to use: Heat in the microwave at 600W for 1 minute to 1 minute and 30 seconds. Increase the time until it reaches your desired temperature. Be careful not to overheat. The warmth lasts for about 30 minutes. When reheating, wait 3-4 hours before using again. Replace the contents after 1-2 years when they become hard. *Instructions will be included with shipping. For fertility treatments, warming activities, menstrual pain, gut health, menopause, stiff necks, stiff shoulders, cold sensitivity, and cold prevention. Because it is handmade, we make it carefully, but it is not perfect like a mass-produced product. Thank you for your understanding. *This is not a medical treatment and does not improve medical conditions.