DETAIL - Pins: 40pin, 5 pcs Female + 5 pcs Male, Pin spacing: 2.54mm / 0.1' , Number of Rows: Single Row, Contact Shape: Square, Degrees:180°, Straight, Male long pin length: 11.50 mm / 0.45 inch, Female pin length: 3.2 mm / 0.126 inch DURABLE PLASTIC AND STURDY PIN - The durable plastic are perfectly matched to the sturdy pins and never fall out, the plastic have high temperature resistance perfect for solder header. GOLD PLATED WITH ANTI-CORROSION - Pin headers are fully gold plated needle, with anti-corrosion and better contact. The brass pins have better conductivity and perfectly fit for female socket. APPLICATION - Used for PCB, Arduino prototype shield, Raspberry pi ( NANO / GPIO extender / PICO / ZERO ), Machine, SMD led strip, Breadboard, Soldering header pins, Board, Electronic circuit, etc. BREAKAWAY DESIGN - The Male pins are breakable, you can easily separated at the indentation on the plastic. The Female headers - Count off the number of headers you need, then count one more. You need to sacrifice one header to cut with wire cutters.