Magnetic Eye Mask is made of non fluffy fabric and magnetic cloth, breathable and comfortable to wear. There are large and small 2 types to choose from. The adjustable elastic band with buckle design, fits different head circumferences without slipping. Built-in active magnets to relax eye muscles, relieve fatigue and help improve the pressure around the eyes. The light blocking functionality will block light and protect your eyes from annoying light. Suitable for travel, nap and insomnia.