Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Poor Quality

NOTHING on this barrier tightens! The included screws do nothing - they loosely fit into their holes and therefore, do not hold the horizontal bars in place. Additionally, the rounded ends of the horizontal bars easily expand and retract but there is NO WAY to secure them in any one spot - so if your dog has HALF a brain, he/she will just use his/her nose to move the bars aside (in fact, it's so easy to move them that I'd bet most dogs will do it accidentally). VERY poorly designed. We are absolutely returning this piece of crap.