i have had several different doggie steps ranging from $50 to $120.  They were made of wood
and were heavy.  My dog ate them, stained them, or in other ways ruined them.  This product is great.  My dog can't eat it (due to its hard plastic make) she can't stain it (as I can remove
the material on the steps and clean it) and it is
heavy duty without being heavy.  Lastly the price is great.