We have 43 units of the Arduino Stackable Header - 10 Pin in stock at our Sydney warehouse.
Arduino Stackable Header - 10 Pin
We can get a further 5000 units from SparkFun Australia.
If you order today we can dispatch this stock between Wednesday, Oct 24 and Monday, Oct 29 2018.
SparkFun's Description of the Arduino Stackable Header - 10 Pin
This is a 10-pin female header, with extra long legs – great for stacking R3-compatible Arduino shields!
Pins are spaced by 0.1".