You can find these Spheres at Yankee Candle Stores, or occasionally Winners has them at a cheaper price. I like these better then candles, as when you have pets I am afraid they will knock them over. With the Speres you take the inside wrapper off and the scent comes out, I place these in the bathroom, kitchen, near the kitty litters. The smell of this one is great. They last quite a long time, probably a couple of months.