Refractory ceramic artificial contemporary spheres for indoor gas fireplace Contemporary design offers an ideal alternative to traditional log sets 19-piece sphere set 5-inch diameter spheres Overall set width: 24 Inches The Real Fyre Fyre Spheres offer a contemporary alternative to traditional gas logs. Featuring premium ceramic construction, these spheres offer superior durability when used with a Real Fyre pan burner. Each sphere measures five inches in diameter to creating a striking flame presence in your gas fireplace. This set features an epic black color.