Does a 2001 Acura MDX have a timing belt or a timing chain? If it's a timing belt, don't want it snapping too, like the serpentine belt did!

It has a belt and change it now from the age, it's an interference engine on that model

I looked on Auto Zone's website and they have a $186 kit with a timing belt and other accessories, and they have the timing belt itself for just $20. Since the belt hasn't snapped off yet, am I better off getting the $20 timing belt?