【Tunnel Hollow Design】Betta Fish Tunnel can be used to watch the movement of the fish, with openings at both ends of the tunnel, small fish and shrimp can go in at will, simulating a cave shelter, providing them with a place to hide from other fish attacks. 【Decorate Fish Tank】 Betta Fish Tunnel is fixed in the fish tank, you can put plants on it to create a natural landscape, adding fun to the fish tank, suitable for fighting fish, small fish and shrimp. 【Suction Cup Fixing】Fixed on the inner wall of the smooth glass fish tank by suction cups, clean the installation position before installation. 【Plastic Material】 Made of high quality plastic material, sturdy and corrosion-resistant, easy to clean, suitable for freshwater and seawater environments, creating a comfortable living environment and independent space for small fish. 【SHOP WITH CONFIDENCE】To provide you with the highest quality service, If you have any question, please contact us.We will provide after-sales service .