Material: Plasitc * The cleaner pump can also be used to pump water back into the aquarium, eliminating the need to struggle with heavy buckets of water. * Easily remove water from your vacuum waste away from the base. * Length: 174cm / 68.5"; Hose Diameter: 1.5cm / 0.6"; Pump End Diameter: The Big tOne: 4.1cm / 1.6"; The Small One: 1.2cm / 0.5" * Move the nozzle around the ceramic media to take out waste and debris with the water.