4. roll it up to the mark on one side

5. make a small hole with your scissors at the imaginary line between the marks and attach the first string, and a second string in a second hole.

6. Turn your blanket upside down ( to prevent and air draft), place it under your door, tighten and add two holes close to your door (6a).

7. Roll the blanket up and fix it with strings. I used two on both sides and it worked fine.