AFter much  shopping, we are glad we decided on this ramp.  Our 3 elderly dogs have no problem using it, even in the rain, because of the textured rubbery surface that gives them great traction and doesn't scratch their paws. It is somewhat heavier than some other ramps, but well worth the weight. We put this up over our RV steps for the dogs, but it is strong enough for us to use also. It fits, at an angle, but still sturdy in the open back passenger door of our GMC 2500 truck.  Also, there is nothing to scratch the vehicle as all surfaces are protected with the "rubbery" coating.  We couldn't be more pleased.