Contains 8 LB Container. Color Metallic Caribbean Blue. Fireglass Size 1/4 . For Use With All Gas Fireplaces and Fire Pits Including Propane! . Our Fire Glass Crystals are the highest quality in the industry. We have designed our own process for manufacturing the fire glass that makes our glass the brightest glass and gives our glass the most brilliant sparkle in the industry. We don't tumble our glass like other manufacturers that tumble the glass on itself. This scratches the glass and the dulls the glass. Our process polishes the glass while minimizing the sharp edges and giving the glass the look of brilliant gems. Our Metallic Fire Glass Crystals have a Mirror Reflective coating on one side which makes them sparkle even more!.