Mr. Fireglass Lava Rock Granules, 2.75"-5" Large Volcanic Lava Rock for for Fire Pits, Fire Bowls, Fire Table and Gas Log Sets, Decorative Landscaping, Indoor & Outdoor Fireplaces - 10 Pounds, Black

【Natural Fire Pit Rocks】 -These black lava rocks have natural a porous surface, which can help spread the gas dispersion in all directions to improve the flame performance. It works great as a firebase underneath fire glass for fire pit or fireplace. While, it requires very little maintenance.. 【High Temperature Resistance Lava Rock】 -Withstands exceptionally high temperatures without breaking down or cracking. Clean burning media for indoor and outdoor use around your home or business. Works great with propane and natural gas.. 【Multi-Purpose Application 】 -10-pound bag of premium lava rocks. Perfect for fire pits, BBQ grills, gas log sets, fireplace enhancements, landscaping projects, garden mulch, aquarium setups, and creative craft projects. Note: Please make sure the volcanic rocks are dry before burning or it may cause an explosion.. 【Natural Landscape Decoration 】 -Earthy appearance complements diverse landscapes by adding texture and depth. Ideal as transitional elements between garden zones or decorative mulch in plant beds. Effectively covers exposed aggregate while concealing unsightly pipes in gardens, lawns, and walkways.. 【Activate Oxygen Ions in Water and Optimize Water Feature】-Natural volcanic rocks can activate the oxygen ions in the water and promote the metabolism of plants and animals. Porous structure absorbs harmful bacteria, waste residues, and heavy metal ions. Perfect for water features, swimming pools, aquariums, and pond ecosystems.