Vktech&reg; Plastic Vivid Coral Fish Tank Aquarium Plant Ornament Decoration Put this simulation coral reefs resin on the fish tank with the fish relative to shine,it must feels interesting Easy to clean, can be used for a long time cause it's made of plastic material It's not only no harm to pet fish but also create a more natural environment for the fishes Material: Plastic Overall Size (approx): Height: 13cm, Width: 17cm, Thickness: 3.5cm