High-quality materials: aquarium decorative caves are crafted from high-quality PVC material, ensuring robust durability and maintaining their original shape and colour even after prolonged immersion in water. Its slender design complements any aquarium, adding an air of elegance while providing vital stimulation for your aquatic creatures. Openwork Structure The cleverly designed small holes of the tunnel prevent accidental pinching and provide a safe haven for small fish, shrimp or other tiny aquatic creatures. The exterior is perforated and features a natural, biomimetic shape that enhances the overall aesthetics of the pelvis. Contents of the packaging: you will receive two aquarium decorations the yellow model with a diameter of 5 cm, a length of 14.5 cm and a weight of approx. 153 g and the red model with a diameter of 4.5 cm, a length of 10 cm and a weight of approx. 84g Habitat: Its numerous openings create a comfortable habitat where fish and shrimp can swim, rest and multiply freely. Whether alone or in combination with aquatic plants, stones and other decorative elements, the cave aquarium enhances the aquarium landscape with its lifelike and natural beauty. Widely used: Whether alone or in combination with aquatic plants, stones and other decorations, the cave aquarium enhances the aquarium landscape with its realism and natural beauty.