Our scented wax tarts are a very popular item for freshening up a room. Melting one of these candle tarts in a candle warmer will release the fragrance into the air. Our wax melts are 2.5 inches in diameter with fluted edges. You can use these wax tarts in both candle warmers heated by a tea light candle or the electric ones. Mix and match different scented tarts to create your own unique blends. If you are going to use these with the Plug In Tart Wamers the wax melt should be broken into small pieces so the warming dish does not overflow. We make these wax melts using paraffin wax.