Regular jumper wires can be too long when jumping pins on the board and even the simplest circuit looks complex due to the clutter of the wires.This U shape breadboard jumper wires solve the very thing. They are specially made for jumping pins on the breadboard. This bundle includes total 140 of these jumpers in lots of sizes. 10 each of 2, 5, 7, 10, 12, 15, 17, 20, 22, 25, 50, 75, 100, and 125 mm length. And as a bonus they come in a nice box.