It may just be my unique situation but my Papillion (weights about 18lbs) just could not get enough grip to make it up the ramp...she is 14 years old but doesnt have any problems going up and down stairs. This ramp does have like a sand paper base but she just kept sliding down. It would also be nice if it somehow locked onto something in the vehicle instead of just laying it on the ledge...didn't look to secure.