Cross Stitch Method

Cross-stitching is used when sewing together the covalent surfaces, such as when making a tubular object.
After threading two stitches through each of the holes lined up on both sides, thread the left and right stitches through the diagonal holes so that the stitches cross each other.
Thread the left and right stitches through each of the holes on the opposite side of the hole you have just threaded through. Repeat this process to create a cross stitch.
At the beginning and end of the stitching, it is best to do one or two backstitches in the holes on the left and right sides.