Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Don't waste your money

I bought these less than a year ago because I wanted to switch all my containers from plastic to glass, and I loved that these were made in the US (at least the glass, not the lids). All I can say now, is don't waste your money. These ALL chipped, and NOT by being dropped. Just by sitting in a drawer and being stacked, they all started chipping at the rims and I have to throw them all away because there are tiny little "shavings" of glass inside them. Great concept, but very disappointing.