ComfyComfy Back Warmer Microwaveable Flaxseed Heat Wrap for Natural Therapeutic Stress Relief and Relaxation Made in USA by (Olive) MADE WITH 100% ORGANIC FLAXSEEDS FOR SUPERIOR HEATING. Flaxseeds are 30% flaxseed oil, which remains in the seed even when warmed or cooled many times. PROVIDES SOOTHING THERAPEUTIC WARMTH FOR HOURS OF RELAXATION. Our heat wraps conform and embrace your body, providing pleasurable, natural warmth. Microwave our heat wraps for 3-4 minutes and they stay warm for hours under blankets. EVENLY DISTRIBUTES HEAT. Separate chambers filled with flaxseed keep heat evenly distributed throughout the heat wrap and allows you to place the pillow where you need the most relief. EVENLY DISTRIBUTES HEAT. Separate chambers filled with flaxseed keep heat evenly distributed throughout the heat wrap and allows you to place the pillow where you need the most relief. MADE IN THE USA BY A FAMILY BUSINESS.