These jumper wires come with a twist! Instead of going from 0.1"/2.54mm pitch headers to breadboard or something like that, these are 2.54mm to 2.0mm! Handy for making wire harnesses or jumpering to annoying 2mm-pitch connectors, these premium female-female jumper wires are around 8" (200mm) long and come in a 'strip' of 40.