These wickless wax pieces melt quickly to produce room-filling fragrance in minutes. It works in all electric and non-electric warmers. I use about 80% soy wax which makes a well-made soy tart and will quickly, much to everyone’s delight, fragrance the whole room. While the performance and beauty of soy speak for themselves, they are also eco-friendly, renewable, American grown, sustainable, carbon neutral and the list goes on and on. I also use 20% paraffin wax. Paraffin Wax is an odorless wax that will sustain color and fragrance very well. With my wax tarts you are getting the best of both worlds. The size, shape, and color of individual wax pieces may vary. Remember to change your wax after 4-6 hours of use. Get your favorite scents in all shapes and sizes! The products I make include wax tarts, candles, incense sticks, diffuse potpourri oil, and perfume.