Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Double Thumbs Down!!

The order did arrive very promptly but product was not what was expected. Don't waste your money! I have 2 dogs with black nails. Every time I went to clip their nails, the light would be green until I started to squeeze handle to clip nails. Then the light would turn red. The blade was not very sharp either. I would rather use regular nail clippers and just keep clipping the very tips of black nails (as done at Veterinary)until the nails are short enough without clipping into the quick. Big waste of money.