Features:High quality plastic materials, sturdy and easy to use.Wash sand, purify water. It helps to clean awya fish feces and feed residues.Wide nozzle cleans larger area using less water and time and cleans corners and edges more efficientlyFor aquarium sand wash and water changes. Colour: TransparentandblueHose length: 150 cmPlastic hose diameter: 9.5mmWash the sand plastic pipe length: 190 mmSand washing plastic hose diameter: about 25mm Package Content:1 x Vacuum Water Changer Pump Siphon HoseDescription of use: 1. put the pipe with suction head into the tank.2. put the other end of the plastic tubing into the pail, shake the pipe with suction head up and down untill the water expel out automatically. 3. move the pipe with suction head following the effective slant angle and agitate the sand, dirt can be sucked out with water easily.Note:1.This product is only suitable for aquarium with water depth less than 1 meter. please confirm the size before you pay for your order 2.Fish water can be used to water flowers, which can save water and promote the growth of flowers and plants.3.Please allow 1-2cm difference due to manual measurement.4.Due to light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding