Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Useless - DOES NOT KILL ANTS

This product is used like a wall of sand, you put it outside and when the ants find it they have to walk around it. If you put it all around your house then the ants have to walk on the sides of walls (where the sand doesn't stay). Also if a little water gets on this sand, than the sand is useless. Big waste of money.