Pet Gear Easy Step IV Pet Stairs, 4-step/for cats and dogs up to 150-pounds
The Easy Step IV Pet Stair has wide, deep steps to give smaller dogs the ability to get their entire body on each platform and large dogs the ability to comfortably climb the stairs.  The innovative incline of each step reduces the amount of stairs needed to climb, eliminating stress on your pet.  The carpet tread is easily removable and machine washable.  Stairs easily snap together (no tools required).