Fine workmanship and realistic modeling, unfading color after being soaked in water for a long time, the rockery decorations will not affect the water quality, nor will it affect the health of the organisms, providing a safe place and new vision for them. What's more convenient is that rockery don't need extra care, which saves worry and effort. Place the luminous rockery decoration in the fish tank, which glows in dark and add more sophisticated and romantic decoration to your fish tank, day or night. It is constructed of ps material. There are four different styles for you to choose. Suitable as fish tank decorations, aquarium decorations, furniture furnishings, garden decorations, etc. Item Name: Fish Tank Decoration Material: PS Usage: Decorative Features: Luminous, Eco-friendly, Simulation Size Details: 1: 8.3cm x 5.5cm x 4.6cm/3.27" x 2.17" x 1.81" (Approx.) 2: 8.6cm x 6cm x 4.6cm/3.39" x 2.36" x 1.81" (Approx.) 3: 8.5cm x 5.4cm x 4.2cm/3.35" x 2.13" x 1.65" (Approx.) 4: 8.4cm x 5.8cm x 4.2cm/3.31" x 2.28" x 1.65" (Approx.) Notes: After the light and sunlight are irradiated, it can glow in the dark, and it must absorb light before use. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Fish Tank Decoration