American Fire Glass AFF-GRYRF12-10-J 1/2" Gray Reflective Fire Glass 10lb Jar. Gray is ANYTHING BUT dull and boring! Trendy designers recognize the versatility of the color gray and its ability to complement virtually any color scheme. It’s a profoundly conservative yet daring color choice for both indoor and outdoor environments. When your customers add our 1/2" gray reflective fire glass to their gas fire feature, they are sure to receive a pleasant surprise. Although the gray fire glass looks remarkable on its own, it suddenly seems to come to life when a bright fire gleams across its surface. The red and yellow flames add warmth to the gray-infused glass, and the reflective properties of the fire glass further enhance the entire experience, glittering and shining and transforming the ambiance of the surroundings.