sparrow armor contains:
12ea 3x8mm titanium screws
10ea 3x6mm titanium screws
22ea 3x20mm titanium screws.
These screws are used to beef up the Sparrow, making it virtually bullet proof.
The titanium screws are designed to replace the main screws on the frame. (the only ones that are not replaced by this kit are the ones that hold the flight controller to the board, and the ones that hold the landing gear to the frame.
This kit is made for the Sparrow R3 frame.