It can cut through steel
like it was RUBBER.
The Big Bang Theory Season 2, Episode 12
The pencil's RUBBER.
The Big Bang Theory Season 4, Episode 18
Not the brush part.
Just the little RUBBER thing...
The Big Bang Theory Season 4, Episode 6
My mother made me wear RUBBER gloves
to kindergarten...
The Big Bang Theory Season 3, Episode 5
And RUBBER gloves, air freshener...
The Big Bang Theory Season 8, Episode 19