Designed to slide between the yarns of knit fabrics without snagging with a rounded tip. For optimum performance, change your needle every 6 – 8 hours of sewing and/or type of fabric. Designed for sheer to heavy-weight knit fabrics.Rounded tip prevents snags.High quality steel and manufacturing for extra strength and performance.Assortment includes one 70/10, two 80/12 and two 90/14 Ball Point Needles.