It contains 12 functions:
closing blade large.
small closing blade.
cross screwdriver.
can opener .
part of the opener is also a small screwdriver (also for cross screws).
bottle opener .
a screwdriver is a part of the opener.
a wire insulation remover is also part of the opener.
punch, reamer.
Stainless steel key ring.
tweezers.
toothpick.