Quick campy question - what are those two plastic thingies in the box?

[auto_rock]

Found these in the box, but have no idea what they are.

https://flic.kr/p/KySC8c

I can't figure out where these go... any tips? First time playing with Campy 11s...

[FlashUNC]

Reach adjustment inserts. Go on the back of the lever if you're trying to change the reach of the lever body from stock.

[Ronsonic]

Good if you've got big hands. Not a huge difference, but a difference.