DETAIL - Contact Type: Male, Pins: 4pin, Quantity: 50 pcs, Pin spacing: 2.54mm / 0.1' , Number of Rows: Single Row, Contact Shape: Square, Degrees:180°, Straight, Long pin length: 10 mm / 0.39 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 SMD led strip, PCB, Arduino prototype shield, Raspberry pi ( NANO / GPIO extender / PICO / ZERO ), Machine, Breadboard, Soldering header pins, Board, Electronic circuit, etc. BREAKAWAY DESIGN - The male pin are breakable, you can easily break them apart at the indentation on the plastic to get the number of pins you want, Please see Picture 6.