DescriptionThese needles employ two needles on a cross-bar from a single shaft. They can be used with zigzag sewing machines that thread from front to back. They sew 2 lines of stitching at the same time to multiply the beauty of decorative stitching. Also fit all household zigzag type Sewing Machines that require a needle with a flat side and thread from front toward back.Features- Color: Blue,Silver Tone. - Material: Stainless Steel and Plastic. - Package Size: 4 * 2 * 1cm / 1.5 * 0.7 * 0.4inch(L * W * H). - Good accessories for sewing machine. - Made of stainless steel, so durable. - Needle Gauge: Approx.2mm, 3mm, 4mm /0.08", 0.12", 0.16". - Employ two needles on a cross-bar from a single shaft, can be used with zigzag sewing machines that thread from front to back. - Sew 2 lines of stitching at the same time to multiply the beauty of decorative stitching.