Features: 1. Made of resin, insoluble in water and non-toxic to fish or water plants, they will not die, rot or cause any algae problems 2. Smooth edges, no harm to your fish. Not fade or discolor and adds a natural flavor to your fish tank or aquarium 3. Cave design adds underwater adventures feel to your aquarium. Pets get a natural opportunity to hide in this cleverly designed climb stone, satisfying a healthy desire for coolness, privacy and protection 4. Use the simple method decorate and maintenance your aquarium. Designed with flat bottom, just put it in your water tank or aquarium slightly then it can stand in your aquarium easily and steadily experience Specification: Size:7*6*12cm Material: Resin Notice: 1.Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. includes: 1sets x Aquarium Ornaments