The length of the fabric (and hence the resulting scarf) shown in the video is 2½ yards. It can be any desired length. Typically fabric comes in 44" or 45" widths. Here it is split down the middle, thus giving enough material to make two scarves if desired.
. Sewing machine
. Cutting tool
. Straight edge with inch measurements
. Seam ripper
. Water soluble marker pen
. Some form of flat cutting surface