The video shows a person's hands folding a yellow towel on a white surface. The towel is folded in half, and then the person uses a black marker to draw a line down the center of the folded towel. The person then folds the towel again, and the marker is used to draw a line down the center of the new fold. The process is repeated several times, with the person using the marker to draw lines down the center of each fold. The final result is a neatly folded towel with a line down the center of each fold.