Color from an environmentally friendly ceramic stain on porous fireproof materialVariety of sizes uniform sets and non-uniform sets variety of colors availableFor use with fire bowls fire pits and fireplaces either indoors or outdoors (Liquid Propane or Natural Gas)This stone can withstand extreme temperaturesDoes not emit any toxic fumes. Requires very little maintenanceProduct Weight:14Product Height:8Product Width:8Product Length:24Assembly Required:Yes This product ships in approximately 1 days