Features: For aquarium water changing and filling. Use accessories to filter gravels to suck up food and fish dung that accumulates in the aquarium. A must have tool for every aquarist. ABS and stainless steel constructions ensures corrosion resistance. This tool simplifies the task of changing water in any home or commercial aquarium setting. Specifications: Component: ABS+Stainless Steel Size: Approx.13.98x4.13inch Quantity: 1 Pc or 2Pcs Package Includes: 1 pc Aquarium Water Changer or 2 pc Aquarium Water Changer note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.