【Large Classic Black Lava Rocks in Various Sizes】 - Range from 2.75 to 5 inches in size for each individual rock.
【Suitable for Indoor and Outdoor Environments】 - Volcanic stones are heat-resistant, colorfast, and non-toxic. Ideal for use in fire pits, fire bowls, and fireplaces. Compatible with gas, environmentally friendly, and safe.
【Durable and Easy to Maintain】 - Black fire rocks can withstand high temperatures without damage, degradation, or crumbling. A cost-effective way to achieve an attractive burning effect and elegant appearance.
【Versatile and Multi-Purpose】 - Natural volcanic rocks are excellent for retaining moisture in soil and raising garden beds, as well as for use in water gardens, patios, and ponds. Can also be used to cover unsightly pipes and tubes, or as a base layer for fire glass or mixed with glass.
【Enhance Flame Performance with Lava Rock for Added Effect】 - These natural black or red fire glass rocks have a porous surface that enhances gas flow. They improve flame performance during combustion, and visually and ambitiously bring exotic fire features at a low cost.