PHOENIX VITAL LIFE Reflective Fire Glass for Fire Pit and Fireplace, 10 Pound, 1/4-inch, Copper 10-pound bag of -inch reflective colored fire glass for fire pits, landscaping, aquariums and many other uses Unlike most brands the phoenix fire glass does not produce any toxic fumes The reflective fire glass is a superior alternative to lava rocks as there arent any traces of soot, grease or odors Replaces existing gas logs and lava rocks for a modern and elegant look Handle with care, glass may be sharp - for use in natural gas or propane fire pits