Lsgoodcare 40pin Male to Female Jumper Wires + 40pin Male to Male Cable + 40pin Female to Female Breadboard Jumper Wires Ribbon Cables Kit 120pcs Breadboard Jumper Wires Ribbon Cables Kit Each cable length: about 20cm /8-inch. The cables can be separated to form an assembly containing the number of wires you require for your connection and to support non-standard odd-spaced headers Made of high-grade copper wire material for safe and durable to use Portable design, easy and safe to use