KLASSE embroidery machine needles are designed for machine embroidery, with a wider eye that helps support smooth thread movement at higher stitching speeds. This cassette includes five size 80/12 needles for stitching designs with rayon, polyester, or cotton embroidery thread on common embroidery fabrics. Choose embroidery needles for decorative motifs, monograms, and fill stitching, and refer to your machine guidance to help minimize skipped stitches.