Instruct: Classify Amazon reviews into positive or negative sentiment
Query: first off santa chose the wrong color for my male dog. nuff said

I was very dissapointed with this bag-o-balls, I originally purchased these for my shepard, he uses these like humans use bubble gum, they make him happy. This bag the balls collapsed within moments of giving to him. when I Purchased the first bag, they lasted for 2 months, this bag lasted a week.