Features Craft：polished and waxed Weight：20lb Size：approx 1-2" No fading Natural Stones are non-toxic No additional fillers, dyes, or oils Great for use as a filler for cylinders, trays, home decor, aquariums，walkways, driveways, water features, ponds, water gardens Caution: Please wash the surface with hot soapy water before putting it in the aquarium, and then wash it with clean water.
