Our hand-crafted stone oil candles are made out of natural slate varying in beautiful mineral colors and textures. During the creation with rock hammers, the characteristics and design are controlled by the composition of the slate and the artist. We have created a maintenance-free, low-profile candle that you will enjoy for years, just add oil. Our fiberglass wicks do not burn away and each copper wick holder is hand-crafted. Enjoy a 5 hour burn. You can even add essential oils for your favorite aroma.