Material: Tinned copper is primarily used for protection against oxidation and corrosion, good for soldering. Package: Comes with 1 x 40pin 10cm F-F multicolored jumper wire. Product: Ribbon. Type: female to female. Length: 10cm. The wire gauge: 24 AWG. Color: multicolored, standard color scheme. 2.54mm pitch headers and socket, proper diameter to fit in the holes of breadboard. Compatible with arduino, breadboard, raspberry pi, prototyping, parallax, PCB project, DIY experiment, electronic project, etc. Max current is up to 1A with 24awg wire, The entire jumper wire have been tinned, can be cut from between and resolder. You can flexibly separate them into 1 individual wire perfect for various applications. Premium Quality: Female pins are perfectly fit for the Male one ,accurate hole-pitch: 2.54 mm. Our 11 core copper wire with low resistance have a better conductivity and more reliable than copper-clad aluminium one.