Rosehill Candles tart melts are highly scented wax that is to be melted over a tea light tart warmer or in an electric crock. Rosehill Candles tarts are 3.5 oz. and resemble a thick chocolate bar with six cube-shaped pieces. Customers can break away these cubes and melt as one at a time or several at once—allowing them to control the amount of scent in the room. Our Tarts come in all 37 scents and can last up to 15 hours for each square. Each Tart comes in an air-tight plastic package.