The jumper wires are pre-cut and bent in right angles at the ends, so you can choose the appropriate length for your application and plug away without wiring getting messy and out of hand. Included with this kit are 14 various lengths of 22AWG wire - 3, 5, 8, 10, 13, 15, 19, 21, 23, 26, 51, 77, 103, and 126mm - 10 pieces of each.