Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Piece of junk!

As noted by other reviewers, the screws will not tighten far enough the prevent a mid-size dog from forcing its way through the bars. I tried improve the product by through bolting the bars so they would not slide. "Not to worry" said my 55lb. Lab mix, "I'll just bust right through." And she did. The side extensions are made of such ligh weight tubing, she was able to force her way right through, bending the bars apart.I would recommend you save yourself the time and trouble and just buy a mesh-type divider right off the bat. Don't be drawn in by the cheap price - you get what you pay for.... and some times you don't even get that much.Anyone know how to return a twisted up mess of metal to Amazon for a credit?