They are for use in a Tart Warmers.
Its really nice to enjoy the fragrance of our candles this way with no flame, or to put them in a place in your home that you can’t burn a candle but want to have some fragrance.
Each mini square lasts approx 12-18 hours, but it depends on your bulb and how bright it is, but generally, you can smell them continuously for 12-18 hours till the scent cooks out.