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

I bought a set of sport rite air bags on feb 22 2011 for my 06 chevy silverado, the date today is march 21 2012 and one has a hole in it, do to they continuously leak air and then flex like a shock and crack the rubber til it wears a hole it, so be aware they will not back there product. i got these to help with leveling the truck while pulling my camper they were only pumped up to 28# 3times last yr which max is 30#. other than that i maintained 10#. when i contacted the company they said the hole was not under warranty its only manufacture defect. Ah OK I didnt put the hole there.