The eye mask is designed to fit every head size. Flexible and durable to surround your head comfortably, strap high elastic and easily to adjust, will not catch your hair.Unique 3D eye mask will not touch your eyelids/eye makeup, no pressure on your eyeballs, and you can open your eyes freely.Light and breathable material and smooth fabric let you release your facial stress and help you get into sleep rapidly. High quality sponge is featured with deformation and no smell, skin-friendly and soft, which increases people's sleep desire.9" L x 3.5" W