Vertical stripes (ribbing) are possible by having alternating wales of knit and purl stitches. There are many hundreds of different knitting stitches used by hand knitters. It is a form of decorative stitching, with no overlap of any two stitches. There are usually many "active stitches" on the knitting needle at one time. The knitting of new stitches occurs only at the tapered ends. This is a list of knitting stitches. Sewing machines can make a great variety of plain or patterned stitches. The cut is repaired with stitches (sutures). Seam rippers are used to remove mistaken stitches. He suffered several cuts, requiring stitches, and a fractured rib. The wound was not serious, requiring two stitches. He suffered a fractured nose and a split lip requiring three stitches. It is held in place by a few small stitches or surgical staples. The net is then filled in using the same thread by intricate interlocking stitches. Haddon allegedly threw a glass and cut Slater's neck, which required 20 stitches.