This flaxseed microwave pillow contains 100% Certified Organic Flaxseed. Optionally, you may choose Organic scented herb in the drop-down menu. The pillow fabric is undyed 100% hemp linen. This pillow is approximately 22 inches long by 4.75 inches wide and contains certified Organic flax weighing 1.75 pounds or heavier when scented, or over 2 pounds when unscented.The pillow can be used hot or cold on the neck, head, or back. Aquarian Bath pillows are free-form like bean bags so that they can be used as heating pads anywhere on the body, not just the neck. You can shape it any way you like to fit it most comfortably. The loose form feels great on an aching sacrum when positioned between it and a recliner, or take it to bed hot to warm your feet on a cold night. Store them in the freezer for using cold, or heat them in the microwave for sustained moist heat. Your pillow is made to order and will be packaged in a biodegradable cellophane bag with heating instructions.