ITEM NAME:10cm 2.54mm Female To Female Wire Jumper Cable For Arduino Breadboard JR Descriptionï ¼Å¡ Item Name: Female to Female Jumper Wires Length: 10cm/3.94'' Quantity: a row of 40 roots Female to Female header Compatible with 2.54mm spacing pin headers High quality and in good working.Be used for electronic project and Genuine Arduino product. Female to Female header. Compatible with 2.54mm spacing pin headers. Easy to install and use. A popular choice for construction or repair.