This is a Replacement LCD Touch Display Digitizer Front Panel with Home Button Assembly For iPad 4 Black includs:
Front touch screen glass: replace your broken,damaged, cracked,dead Glass Screen/Digitizer.
Front Camera holder: it is used to hold the front camera.
Home button flex cable: Another side is connected to the board.
Original 3M adhensive: It is used to stick the touch on the back cover.
http://www.hytparts.com/000381-oem-front-touch-screen-digitizer-glass-assembly-repair-parts-for-ipad-4-black.html