Big Rainbow Reflective Firepit Glass, also known as fire glass or crushed glass, which is used for decorative purposes.
 
Key features and uses include:
Material: It is typically made from high-quality, heat-resistant tempered glass or durable resin glass. 
Appearance: The glass pieces are crushed and have reflective properties, creating a radiant and shimmering display when light or flames hit them. 
Primary Use: The glass is often used in fire pits and fireplaces as a modern, clean alternative to traditional lava rocks or firewood, as it does not produce ash, smoke, or soot. 
Versatility: Beyond fire features, this product is popular for various arts and crafts, such as resin art, making geode designs, aquariums, flower vases, or garden pathways. 
Safety: It is designed to be safe for both indoor and outdoor use and is made without harmful chemicals.