American Fire Glass AFF-GRYRF-10-J 1/4" Gray Reflective Fire Glass 10 lbs Jar. Once considered a color of the Renaissance nobility, gray is a timelessly classic color that has outlasted all decorating trends. Gray has a unique formal elegance to it and when your customers add our 1/4" gray reflective fire glass to their fire feature, they may be surprised at how this lovely color enhances the beauty of their homes. Top designers today love incorporating the achromatic shades of charcoal, pewter and silver in decorating themes for both indoor and outdoor environments; all of these subtle shades are embodied in our gray reflective fire glass. The neutrality of the color creates the perfect base for your customers' gas fire pit or fireplace flames and will complement a variety of color palettes.