Six magnetic strips are sealed internally and run the length of the pillow. Magnetic Ripple pillow comes in all-cotton cover and fits your own slip. Features and Benefits: Conventional contoured pillow in one convenient size, featuring a rippled surface designed to diffuse pressure points Maintains good posture for a more restful sleep Mild contour helps open airways to assist asthma sufferers and others who require clearer breathing patterns. Assists in alleviating light snoring