Designed for rayon and polyester embroidery applications. Only for zigzag machines with transversal hook! System 130/705 H-E ZWI NE 2,0: Distance 2.0 mm, Size NM 75 Color coding: Red Fabric Use: The special scarf, widened groove and enlarged eye protect fragile threads and guard against excess friction allowing trouble-free embroidery and decorative stitching. Twin needles are actually two needles mounted on one shaft used to create two rows of stitches simultaneously. When using a double needle two spools of thread will be used on the top of the machine. Pass the thread from each one on a different side of the tension discs and thread one into each needle. Only one bobbin thread will be used and the stitches will create a double “web” of stitches on the back of the work. Check to see how you like this under stitching prior to using these needles. Also available as SINGLE NEEDLE.