The Rasmussen 30" Dark Gray Vented Uniform FireBalls - FB30-LG provide a bold, contemporary addition to your fireplace. Made from durable ceramic with a dark gray, heat-resistant stain, these fireballs are built to withstand high temperatures while maintaining their deep, rich color. Their uniform shape conceals the burner, giving your vented fireplace a sleek, minimalist look. These fireballs are ideal for both residential and commercial spaces, and they are compatible with Rasmussen Vented Custom Pan Burners (sold separately).