4″ – 6″ Thick
30# in a box
Made in the U.S.A. natural volanic lava rock.
For use with Fireplaces, Fire Pits, Gas Logs, Fire Bowls and Decorative Landscaping.
Do not use Lava Rock when wet.
Black finish.
Lava rocks are a heat conductor and also provides an even distribution of both heat and flame.