[Quality Material]: Our aquarium tunnel is made of high quality Silicone material, safe and , no fading, no odour, suitable for freshwater and saltwater aquariums. [Small Fish Shelter]: bettas fish hideout can provide a safe shelter for your small fish. With smooth edges of the entrance, small fish can easily pass through and 't hurt their fins [Hollow Holes]: Hollowed holes in the shrimp cave can prevent small fish and bettas from passing through, and it also facilitates water flow and the growth of , which grows to the hideout make the fish feel safe [Powerful Suction Cups]: bettas tunnel powerful suction cups can be firmly attached to the smooth glass aquarium, easy to install and remove without leaving marks. Perfect for small fish, shrimp, guppy [Easy to Clean]: Fish tank tunnel can be gently brushed with water and a soft bristle brush. No need to use soapy water, soap residue may affect the water quality of the fish tank and cause harm to the fish Tip: Please clean the suction cups of the bettas tunnel and the wall of the aquarium adsorption position before use, so that it can be firmly adsorbed Color: Black Material: Silicone Size:6.3x5cm Package Contents: 1 x 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.