Increase the force of your promotion with these custom sleeping eye masks. It will apply no pressure on eyes. With unique heat-bonded technology instead of glue, it’s sturdy and durable, and not easy to fall apart. Made of good quality silk fabric, it is soft and will never stain your bed sheets or pillows. The adjustable buckle strap enabled it to fit all sizes head. It can effectively block lights and allow you to sleep well. Ideal for meditation, yoga, travel, napping, insomnia, etc.