Made of the polyurethane foam,durable,non-toxic,no element leak out,no influence on the PH level of the water;
*All the paints of the boards are made of the environment friendly materials.Nothing poisonous dissolve in the water,safe for the fish.No danger to chew and swallow a liitle of the fish.
*Its sink in water in the aquariums.
*Any colors as customers requests can do
*Also if need do the polyester resin materials,its no problem