These are a longer version of our [standard](http://www.sparkfun.com/commerce/product_info.php?products_id=116) break away headers. They are 20mm long which allows you use them socket to socket. The plastic separator can be slid up or down to accommodate your needs.
You will get a row of 40 pins. They can be broken or snipped to length.
**Features:**
* Pin Style: Square Pins
* Number of Pins: 40
* Pin Spacing: 0.1\" (2.54 mm)
* Pin Length: 20 mm
**Documents:**
* [Dimensional Drawing](http://www.sparkfun.com/datasheets/Components/longerheaders.pdf)