The PetSTEP has a soft non-slip ridged rubber surface not found on other ramps. It's soft on paws and provides superior wet or dry traction. The ramp opens and closes with ease. The advanced plastic and fiberglass material is light and strong. The ramp can hold any size dog. It's only 18.5lbs and has built-in carry handles for ease of transport. The heavy-duty rubber grips at each end keep the ramp in place during use. Easily washable with soap and water. No sandpaper or carpeting to trap moisture.