Description This is a fish tank permeable cover, which can help create a good aquarium environment. water permeability with safe and premium PVC plastic material. Considerate and convenient design for easier installation. Suitable for fish tank, water tank, fishpond, etc. Features- Color: White- Material: PVC- Note: Inner diameter: 40mm- Note: Glue bonding, not hot melt- Fish tank permeable cover is made of PVC plastic material, has good durability.- very practical and friendly to the environment with easy installation.- With it, the fish tank can be filtered while circulating the water.- Fine craftsmanship and premium design with good water permeability.- for fish tank, seafood pond, water tank, fishpond, etc. Package Including 2 x fish tank permeable covers