Stacking headers are a type of breadboard pitch female connector with extended male pins on the bottom. These extended male pins are compatible with the female sockets found on many popular microcontrollers (such as the Arduino) and allow for circuit boards to be connected (without a mess of wires) and still be removeable.

This specific header has 1 row of 10 pins. The Female Sockets measure 8.5mm tall while the male pins measure 11mm long. Each order includes one 10 pin stacking header.