Also referred to as a Double Needle. With widely spaced needles, this Universal Twin Needle is perfect for sewing dual rows of stitches with a variety of threads with a variety of fabrics. Can be used with zig zag machines that thread front to back. System: 130705 H ZWI BR. Needle Distance: 6.0mm. Needle Size: 16100. 1 needle per pack. Carded.