Water & Wood 325 pcs New Flexible Solderless Breadboard Jumper Cable Wires Kits for Arduino Male To Male Flexible, durable and reusable jumper wires, which can be used repeatedly. Good conductivity, easy to trace, easy to connect and disconnect. It's hard to drop the head of the wire, so you don't worry the head of the cables will fall off easily. All wires are male to male type, which works great with Arduino. There are various lengths and colors for the 325 pcs wires.