Feature: 1. Siphon Principle: Fish tank water changer has a soft squeeze pump that generates fast suction to start siphoning, improving efficiency and ensuring a clean tank. 2. Easy To Install: Aquarium siphon vacuum cleaner is easy to install, just connect all the accessories together, and then use the hard tube to stir debris from the gravel and squeeze the air bladder for easy water changes. 3. Easy To Use: Fish tank water changer cleaner air bladder is resilient and sucks up water with a gentle squeeze, making it easy to clean gravel. 4. Applicable Objects: Fish tank water changer is suitable for small aquariums, fish tanks, turtle houses, coral reef houses and children's fish tanks. 5. Safe Material: Aquarium water changing kit is made of premium PVC material, which is environmental and durable and will not harm your pet's living environment. Specification: Item Type: Aquarium Siphon Material: PVC Airbag Size: Length: Approx. 26cm / 10.2in Width: Approx. 5cm / 2.0in Hose Length: Approx. 1.82m / 71.7ft Hard Tube Length: Approx. 28cm / 11.0in. Package List: 1 x Hose2 x Hard Pipe1 x Suction Cup1 x Fixed Clip Accessories1 x Detachable Clip Head1 x Prevent Suction Mesh Cover1 x Siphon1 x Siphon Head Accessories Note: 1. When using, the water outlet must be lower than the water inlet.2. Manual measurement, please allow slight error