This just arrived and Im so happy with it I bought a cheaper plastic one a few months ago but my dog wouldnt use it It only took my dog two tries before he was confident to walk on this and now he does without hesitation. Folds up nicely in the car. I did notice some of the aluminium corners are a little rough so some plastic trimming around the corners would have been nice but overall great product for a dog that is having ACL issues like mine is.