The Rasmussen 24" Light Gray Alterna Ventless Uniform FireBalls Double Sided (DF-AFB24-LG) add a sleek, modern touch to ventless fireplaces, serving as a contemporary alternative to traditional gas logs. Constructed from heat-resistant ceramic-bonded refractory material, these double-sided fireballs are designed to withstand high temperatures while providing a polished look by concealing the burner. The light gray finish offers a subtle sophistication that complements a variety of decor styles. Exclusively compatible with the Rasmussen Alterna Ventless FireBalls Burner (sold separately), this set enhances the ambiance and functionality of your indoor fireplace.