The Prism Hardscapes 3/4-Inch Lava Rock, 27 LB, Black offers premium media for your perfect outdoor fire feature. This naturally occurring volcanic rock creates a stunning contrast with the beautiful flames of any gas fire feature. In addition, the lava rock is naturally heat resistant. This media can also be used in various landscaping projects. Add elegance and visual appeal to your outdoor space with this premium lava rock from Prism Hardscapes.