The difference between our reflective and non-reflective fire pit glass is our reflective fire pit glass has a mirrored edge on one side. This mirrored edge illuminates light as fire dances atop the glass, creating a dazzling effect. In addition, the fire pit glass reflects a beautiful sparkle as sunlight or natural light is cast upon it. Alternatively, our non-reflective fire pit glass has a very tranquil feel to it, pulling light into the glass rather than reflecting light. Both styles are very popular with our customers; the ultimate decision comes down to what effect you are looking for.