Kitchen Kotta™ is a totally new innovation in fragrancing with the traditional look of terra cotta. The fragrant marbles make absolutely no mess, so there is no clean-up. Much better than candles or messy simmerers! Keep one on your back burner for fragrancing your home every time you turn on the oven below. (Not for use on gas stoves). Can be used in the microwave. Be sure to check out the other items in this fragrant line, including Baker's Kotta and Muffin Kotta. Carb-free, guilt-free fragrance indulgence. Great, too, for realtors (that fresh-baked aroma gives a home that cozy feeling!).