The Rasmussen 30" Black Vented Uniform FireBalls - FB30-BL add a bold, modern touch to any vented fireplace. Made from durable ceramic with a deep black, heat-resistant stain, these fireballs are designed to withstand high temperatures without fading. Their uniform shape conceals the burner, giving your fireplace a sleek and minimalist look. Perfect for both residential and commercial settings, these fireballs are compatible with Rasmussen Vented Custom Pan Burners (sold separately).