Simple and practical fish tank filter tool, which is fish tank or aquarium use, and water in the fish tank, therefore, a great present choice for your friends who want to farm some pet . Features -Color:Transparent -Material:PVC -Size:26.50X20.00X11.70cm/10.41X7.86X4.60in (double-layer box) -Size:28.50X5.70X1.40cm/11.20X2.24X0.55in (tube) -Size:30.00X12.20X2.90cm/11.79X4.79X1.14in ( ) - The material is safe and lightweight, which is wear resistance and practical for the lasting time use. - The structure is simple and easy to use, which can meet different sizes of fish tanks. - Large water storage space is convenient for effective circle of filtered fish tank water. - Place the tool to increase the oxygen in the water. The external filter box of the aquarium is safe and efficient. - The external hanging design of the aquarium filter box is both convenient and effective, allowing for easy installation and maintenance. Package list: 1 x filter box