Suit for freshwater and saltwater. It doesn't harm your fish, shrimp or create any bad impact on water condition. This Fish Tank Ornament can be a funny cave, your lovely pet fish would be happy to and out. Strong and durable, suitable for small fish shuttle, rest, full of fun. Features -Color:Black -Material:Resin -Size:13.50X10.00X10.00cm/5.31X3.93X3.93in -Good and stable resin material, resistant to abrasion, can be used for a long period. -The lifelike Skull Cave Decoration provides the decoration for your aquarium. Strong and durable, suitable for small fish shuttle, rest, full of fun. -Skull Model Aquarium Decoration is a kind of realistic decoration and decoration for fish tanks, bring you a good mood. -Wide applications. Can decorate aquarium, Skull Ornament can be home and office decoration. -It can be used to decorate the aquarium and make the water tank look chic. Package list: 1 x Skull Fish Tank Decoration