A lot of those who are into embroidery get curious about the little red ball on a seam ripper. Most think it is for aesthetic purposes. But that is not the case. It is an integral part of the seam ripper to help you remove stitches easier. Its function is simple. It lets you glide the seam ripper underneath the stitches with ease. The red ball allows you to rip the stitches in one swipe. That way, you do not have to go back and forth, removing the stitches one-by-one.