Those wires make elegant, flat wiring on breadboard, less prone to accidental disconnection and therefore handy for more permanent assemblies.140 pieces of solid 22 AWG cablesBox Size: 165*55*10mm Length: 2mm, 5mm, 7mm, 10mm, 12mm , 15mm, 17mm, 20mm, 22mm, 25mm, 50mm, 75mm, 100mm, 125mm (10 pieces per length) https://elecena.pl/product/21661753/140pcs-u-shape-jumper-wires-box-kit 2022-09-17 https://elecena.pl/product/21661753/140pcs-u-shape-jumper-wires-box-kit 2023-03-08