i was able to mount this directly to the back of the door as my door would not close with the over the door hangers provided.  The only negative is that it sways laterally when the door opens/closes.  I used O rings that are used in plumbing (little washer type plastic rings) and put them on the rods and this stopped the lateral movement.  Problem is i could only find them in black.  A huge improvement to this product would be to include either clear or grey O ring type elastics so that they would match the rods.