This Vevor fire glass is designed to add a polished, decorative look to fire pits, fireplaces, and other display areas. Made from tempered glass derived from quartz sand, it is built to withstand high heat without cracking, darkening, or producing smoke or ash. The black reflective crushed glass creates a bright, shimmering flame effect during use and a sleek appearance when unlit. It is also suitable for decorative applications such as gardens and aquariums. The glass is easy to rinse clean and store when not in use.