Made of high quality resin, corrosion resistance and non-polluting, non-radioactive, etc. The suspended stones are eco-friendly products for fish High simulation stone texture, synthetic moss stone floating rocks change your aquarium into a beautiful scenery Attached with a transparent fishing line and two suckers bottom of the fish tank, the stone will float easily at any level by adjusting the length of the fishing line The stone with green simulation moss offers the natural environment feeling Can absorb the water harmful substance and heavy metals, not only conducive to plants climbing and take root, but also conductive to the fish grow