Rabibabo® Magnetic Therapy Eye mask offer 14 pieces of magnet stones inside the mask and around the rim of the mask, inforce the metabolism of eye skin while sleeping, it helps to reduce dark circle. What's more, we use memory foam material to make the mask in order to avoid pressure on eye. lashes or nose. We design it to be seamless-made so it is comfortable. We don't design it to cover the upper part of the nose cause everyone has differenet-size nose, "One size fits all" can not guarantee the mask can block all the light out. So we cover only eyes. After many careful tests on different people, the result shows the mask blocks all the light out and the memory foam material is very comfortable.The belt of the mask is elastic and adjustable.