PetPad Deluxe Convertible StairRamp, 3 Step PetPad's Convertible StairRamp features a 3 step stair with simple ramp conversion and folds flat for easy storage Reinforced black pine frame supports up to 140 lbs. Veterinarian recommended for aging or arthritic pets to reach beds, sofas, car seats, and more Proprietary microfiber "PawGrip" carpet is stain-resistant and provides traction for your pet's paws Customer Friendly 1-Year Guarantee - call or email anytime for support