The mask shown in the pilot episode has a single eye hole.

I wish I could get these eye holes in the right place.

When the show begins, we see Larry wearing a paper bag over his head, with eye holes cut out and a frowning face drawn on.

Make a cylinder big enough for your child to stand in with comfort and cut out two eye holes.

The hood was still turned so that the eye holes were at the back.

I think he'd only adjusted it at the beginning to show me it did have eye holes.

Why didn't he tear out just the one eye hole?

A moment's work with his knife and it had two satisfactory eye holes.

And he saw, driven into one of the eye holes, a dart.

Had on some kind of a black mask with eye holes cut into it.