*Made from eco-friendly polyurethane. No harm if the fish chews and swallows tiny materials,it will be excreted from the body.

*Durable,no element leak out,non-toxic, PH neutral 

*Colors will not fade and dissolve in water.

*Perfect 3-D and high imitation of the nature living environment bring more variable activity spaces for the fish and provide  the excellent visual effect for ornamental fish.

*More concavo-convex places for the fish to hide out so as to reduce the conflict among the fish.

*Moss is artificial and sticked to the products.It is no harm if fish eat it.It will be excreted from the body.