De or het likeurglas?

The correct Dutch article is:

het likeurglas

How to use likeurglas

the likeurglashet likeurglas
this likeurglasdit likeurglas
that likeurglasdat likeurglas
our likeurglasons likeurglas
your likeurglasjouw likeurglas
every likeurglaselk likeurglas
which likeurglas?welk likeurglas?
a big likeurglas / the big likeurglaseen groot likeurglas, het grote likeurglas