The Rasmussen 18" Natural Vented Uniform FireBalls - FB18-NA bring a minimalist and contemporary look to your vented fireplace. Made from durable ceramic and featuring a natural tan-gray hue, these fireballs are eco-friendly and heat-resistant. Designed to hide the burner, they create a smooth, clean aesthetic. The set is compatible with Rasmussen Vented Custom Pan Burners (sold separately), making it an ideal choice for adding a unique modern touch to your home or commercial fireplace.