De or het ruilobject?

The correct Dutch article is:

het ruilobject

How to use ruilobject

the ruilobjecthet ruilobject
this ruilobjectdit ruilobject
that ruilobjectdat ruilobject
our ruilobjectons ruilobject
your ruilobjectjouw ruilobject
every ruilobjectelk ruilobject
which ruilobject?welk ruilobject?
a big ruilobject / the big ruilobjecteen groot ruilobject, het grote ruilobject