If you've been looking for a fish tank gravel cleaner set, then your search is over That's because our product can provide great help in cleaning debris and dirt on the bottom of a fish tank, change water and fill liquid in to the tank. Features - Color: As shown - Material: Plastic - Packaging Size: 45.00X15.00X10.00cm/17.71X5.90X3.93inch. - Note: It contains a water changer, five cleaning tools and twelve filter materials. - Large size suction air pump, slow press the pump then release while covering up outlet, fill the pipe with water, pumping out water quickly. - Clean debris and dirt on the bottom of fish tank, change water for mini or medium size fish tank. - With suction cup, easy to fix on the tank, free your hand while pumping. - Can be given as a present to your family and friend. - Note: fish tank or aquarium needs to be at least 20 cm in depth.