【Material】 Made of high quality resin, safe, non-toxic, durable, eco-friendly, flexible, realistic and can be placed in both freshwater and saltwater tanks. 【Application】 Suitable for fish tank and fish tank decoration to make it more lively and beautiful. 【unique design】The submarine is pineapple-shaped, beautiful and generous, with bright colors, which increases the natural scenery in the aquarium. 【Easy to use】It has a weighted base design, so they can stand firmly in the aquarium. All you have to do is choose the placement location without further adjustments. 【Hiding Cave】It is an excellent hiding place for fish, providing shelter for shrimp and fish, increasing the fun of playing and making it more dynamic.