LavaGlass® will instantly beautify your fire table by adding a luxurious touch of reflection of both heat and light beneath the flames. This fire glass comes in several different sizes and vibrant colour options, so you can customize the look of your unit to compliment your existing patio decor. It has been tempered and washed, making the LavaGlass® lustrous and colour-safe to use, without ever discolouring or peeling. 1 bottle of the lustrous glass will cover 2 sq. ft. Note: the base layer of your unit should be built up of small lava rocks, to ensure the propane burner is unblocked for optimal performance.