Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Toothpicks dipped in tea tree oil

That's essentially what these are. I guess when I read "chewing stick" I was expecting something more Australian, and by that I mean aboriginal. I didn't look at the picture very closely. Still, these perform as advertised and will clean between your teeth and give your gums a dose of anti-microbial tea tree oil. I just wonder if it would be more cost-effective to buy a bunch of cheap toothpicks and soak them in tea tree oil. But this is a lot easier.