KLASSÉ ball point pins are intended for knit fabrics, using a rounded tip to help part fibres rather than puncture them. This pack includes 360 pins in 30 mm (1 1/8"), made from nickel plated tempered steel for smooth handling during fitting, hemming, and garment assembly. Pin within seam allowances, especially on stretchy hems and seams, and store in the box between projects to help avoid pulls. too