KLASSE-1 German-engineered steel machine needle size 75. 2 needles are attached to a crossbar. Stitching 2 rows simultaneously, they create decorative effects for heirloom sewing, pintucks, fancy hems, and other decorative effects. The 2 numbers in the size of the needle indicate the space between the tips and the size of the needles, respectively. For instance, a 3.0mm/80 needle is 2 size 80 needles spaced 3mm apart. This needle is 4.0mm/75.