Captivating Aquarium Decor: Our Aquarium Underground Tunnel offers an engaging and visually stimulating addition to your aquarium, providing fish, shrimp, and other aquatic creatures with a fascinating environment to explore. Low-: Bury the tunnel under the substrate to achieve a super low profile in your tank, offering a unique viewing angle and enhancing the aesthetics of your aquatic setup. Fish-Friendly Construction: The tunnel features an opening that sits flush with the and a ramp for fish to swim down into, ensuring a smooth and effortless transition for their underwater adventures. Easy Installation: Simply press the cave against the glass and bury it under the substrate, allowing for quick and hassle-free setup in your aquarium. Colour:Black Material:Plastic Package Contents: 1 * Aquarium Underground Tunnel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.