Relief Pak® HotSpot® Moist Heat Pack, Neck Contour, 1 Each Gravity Spike Sets durable and easy to remove MSHQ MENM375 durable and easy to remove so there's little discomfort This versatile pillow offers choice of four ergonomic sleeping options to provide the most comfortable and supportive fit * Pleated side offers greater contoured support with a high and low end providing two options for a comfortable and supportive fit * Peaked side offers a flatter surface providing a choice of two higher firmer sleeping heights * Optimal Air Flow Both pleated and peaked surface textures promote air circulation reduce build up of moisture and help to reduce pressure points * Includes a machine washable pillow protector * Firm Support * 7 x 24 inches Ready to use after heated on stove in hot water or other heating unit for less than an hour