This plastic aquarium hideout is perfect for your aquatic pets. It's made of synthetic material and has an assorted color that adds a pop of color to your aquarium. The rock cave is designed to be a shrimp hideaway, making it a great addition to your aquarium. The dimensions of the hideout are 6.5" x 4". It's suitable for use in any aquarium and is a great decoration that will make your aquatic pets feel at home. This rock cave is easy to clean and maintain, ensuring that your aquarium is always in top condition.