Use these sink drain cleaner sticks to prevent clogs and reduce odor. They're made with a blend of enzymes that dissolve food, grease, build-up, and other organic materials so water will flow freely. Since they prevent things from getting stuck in your pipes, they keep your drain clean and prevent odor. According to the brand, they're safe to use in all sinks. All you have to do is insert one stick each month, and it'll do all the work for you.