Simulated decor: these tank ornaments provide a house for your fish. hollow caves give your fish shelter, points, spawning, privacy. Tank decor: aquarium jar ornaments are simple and easy to use, will always provide a good environment for your fish. Aquatic decor: aquarium decorations are mainly made of good materials, no special odor, safe to use in the fish tanks. Fish tank decor: always need a hole to hide them and to act as a habitat, which the tank ornament is a good choice. Fish tank hide hut: these jars are nice decorations for your fish aquarium with this lifelike ornaments. the bottom is flat and heavier, which can be placed stably. Colour:Photo Color Material:ceramics Package Contents: 4 x fish tank ornaments Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.