I used this fire glass a filler on the colorful one and looks greatLike others said, you have to hose the dust off but looks nice in the fire pit. Not cheap, but if you can afford it, it is a quality look. We covered a 40" x 40" fire pit and needed 6 boxes.Nice quality but too many small bits that clogged my fire pit burner. Had to go thru and manually sort small pieces and now fire pit works and looks great.I knew the glass was 1/2” thick, but the width of many pieces is much larger. If you are using it for art pieces, you’ll have to use the whole heat, ice bath, hammer method to break them down and it takes a while. Keep that in mind.Beautiful fire glass I’ve been searching all over to find the perfect glass for my fire pit and I am so happy o decided to order. Value is a plus fabulous color ! They did arrive a little dusty but I took a towel and wipe them down once I had them installed. Must buy if you are wanting fire glass.Nice colorGood price, awesome product.I have purchased this twice now and given as a gift. It is beautiful with fire burning in fire pit or fireplace and the pieces of glass are large enough to give a lovely reflection when burning.