Instruct: Classify the given review as either positive or negative.
Query: terrible

I already reviewed this product a couple days after i received it and never got word back about anything. I ended up throwing it away. It was way too big and it was supposed to be the right size for my dog based on the description. I tried to cut it and fix it but that didn't work so i had to get rid of it and spend another 20 bucks on something that actually does what it says it will. I bought it to help with the barking when im away and it did nothing. this isn't for barking, it's for dogs that bite!! I wasted 10 dollars and nobody ever answered my emails too them about it.