Time for you guys to learn something. You might find it interesting to know that:-
If you take a strip of paper, and glue one end of the strip to the other so it forms a band or belt, you can then cut along the middle of the strip down the length of it, or what is the circumference of the band, to divide the band into two separate bands. But if you give the strip of paper one twist before gluing the ends together, you have what is called a continuous loop or Mobius Band, and cutting along the middle will only give you a bigger loop. It is called a continuous loop because this object has only one surface, which can be verified simply by using a pen and drawing a line round the circumference.