Eucalyptus is a wonderful filler for any arrangement - it's magic usually means that you can use fewer expensive stems and 'bulk' out or fill any gaps with it and this affordable stem is no exception!  It is full of silver green leaves, a generous stem at a very affordable price.
 
This is also lovely just grouped together in a vase on its own.
NB: For transparency, this is a budget stem of which the composition is plastic. HOWEVER, it's fluidity and beautiful colour definitely make it a stem worth having.  We've used this in projects simply grouped together, we've intercepted it with higher end stems and even introduced it within fresh arrangements.  Its also perfect for adding to tablescapes and fire place garlands.