The male ends meant for insertion into standard 0.1 inch (2.54mm) female sockets and the female ends are meant for insertion onto standard 0.1 inch (2.54mm) male headers

Can modify or revise the circuits easily
Each cable length about 20cm
Reusable for fast build a prototype of an electronic circuit will accept transistors, diodes, leds, resistors, capacitors and virtually all types of components