Ohko stone, often referred to as “Dragon Stone” is sought across the world by aquarium enthusiasts. The textured surfaces of the rock are aesthetically appealing with color varying from brown, to green, to even hints of red sometimes. You’re going to receive 10lbs of stone. Every order contains one larger stone, about 3 to 6 lbs., plus plenty of smaller stones to make up the full 10lbs. Please see the second one picture for a representative sample. Every order is different, as nature makes only one of Every stone. As Ohko stone is basically dried clay, it advisable to wash and soak the stone for a few days before use. Since it is clay based, Ohko stone can also be broken to create smaller pieces with a hammer and chisel.