1 / 6Warning/Disclaimer This product has acquired the relevant product qualification(s)/license(s) of certain applicable country/countries. View more Thickened/Extended/Manual Water Changer: Easy to change water and sand washing. Multiple Colors: Available in various colors for customization. Multiple Specifications: Various sizes and styles to suit different aquarium needs. Factory Direct Sale: Enjoy competitive prices and direct delivery. Eco-Friendly Material: Made from plastic, environmentally friendly and durable. Cleaning The Fish Tank