Calofulston 2"-4" Black Lava Rock, 10lbs Large Volcanic Lava Rock for Fire Pit, Gas Logs, Aquarium, Fireplace, Fire Bowl

【 Heat Retention】 Made by natural high temperatures, lava rocks have porous structure, making them great conductors of heat and a popular choice to use with fire glass for fire pit as they can disperse heat just as adequately

【 Appearance】Black Lava rock measures in 2-4 inches with its irregular shapes that create a more rustic and unique aesthetic, enjoying the warmth while bringing a strong visual effect

【Wide Applications】Diffusely suitable for fire pit, fire table, fire bowl, fireplace and aquariums, enhancing the beauty and functionality of your indoor and outdoor spaces

【 Landscaping】Lava rocks can be used for garden pathways, as a base layer for walkways and mulch which helps retain moisture in the soil, reducing the need for frequent watering, and prevent weed growth

【Warm Reminder】It is imperative to ensure that lava rocks are completely dry before use