These are 12″ long jumper wires terminated as female to female. Use these to jumper from any male header on any board. Multiple jumpers can be connected next to one another on a 0.1" header. Comes in five packs of twenty jumpers (colors shown) for a total of 100 jumpers.
We use these wires for everything! They work great with breadboards, Arduinos, and really any 0.1″ pitch prototyping board.