Birds spend most of their time standing on their perches.
 
It would make a comfortable cage for the birds to have more than one perch, one with nail trimming function and one of a wood perch perhaps would be fit.  If room in the cage allows, few more perches for the bird to maximze their activity area is good.
 
We carry different kinds of perches, whether you are looking for a perch for your bird to trim nails or to take a shower, there is one that suits your need.