These are the hard to find stacking headers for Arduino R3 Compatible shields. This is a single-row female header that has extra long male pins. These are intended to go onto a proto-board or shield and allow you to stack your board onto an existing shield.
These are the same headers that are included on the Arduino shields that we carry. Vetco stocks the 10 Pin, 8 Pin, 6 Pin and 6 Pin (ICSP / 2x3) Stacking Headers. Number of Pins: 10