The Rasmussen 33" Brown Vented Uniform FireBalls - FB33-BR add a warm, contemporary touch to your fireplace. Crafted from durable ceramic with a rich brown, heat-resistant stain, these fireballs are built to withstand high temperatures while maintaining their deep color. Their uniform shape conceals the burner, providing a sleek and minimalist look. These fireballs are designed for use with the CS33W Burner (sold separately) to ensure a perfect fit and optimal performance.