The fire pit glass rocks are a lovely color, and smooth, with a nice shape, sheen & size. The only negative I need to mention, is that on the only 2 occasions so far, that I have lit the fire pit (just got it a few days ago), one glass rock would crack and a small piece would fly out of the pit. I followed the directions but it still happened. It would be a concern with small children or pets and the glass is quite hot. I am hoping it will settle and stop doing it. I imagine that all fire rocks do this, and I am still glad I bought them, but just need to be aware of it.