♨【Stylish Upgrade】- Can be used in an indoor or outdoor fireplace that uses propane gas, natural gas, or electric; can also be used in indoor glass fireplaces, outdoor firepits, fire tables, and fish tanks. ♨【Enough Quantity】- Sparkling 20-pound flame glass. The reflective side is mirror-like, and the color is so vibrant and shiny, especially when the sun hits it. ♨【Dancing Flames】- The fire glass diamond has beautiful colors and shine, very pretty and modern, watching the flames dance in the glass. ♨【No Melting or Fading】- Fire pit glass has strong corrosion resistance, heat resistance, and fade resistance and retains heat effectively. ♨【Positive Environmental Impact】- Does not produce unpleasant smells and fumes. Fire pit glass can replace traditional firewood. Grisun Onyx Black Fire Glass Diamonds for Fire Pit, 1 Inch High Luster Reflective Tempered Glass Rocks for Natural or Propane Fireplace, Safe for Outdoors and Indoors Firepit Glass, 20 Pounds