Arduino Stackable Header Kit These headers are made to work with the Arduino Uno R3, Leonardo and new Arduino boards going forward. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields. This kit includes 4 headers (1X8-pin, 1X10-pin and 2X6-pin), enough to connect a shield to an Arduino board. Includes: 2X8pin Arduino Stackable Headers 1X6pin ...