About this item INLET AND EXTENSION TUBE– Comes with a water inlet tube and two extension tubes, it’s convenient for you to adjust the height according to fish size or the water level. SAFETY DESIGN– Designed with cleaning head with inner mesh, which can reduce suction and prevent water plants or small fish from being sucked up with water. ALL-PURPOSE USE– Aquarium gravel cleaner is used to clean gravel, siphon the fish and other debris by mesh bag, then the clean permeate from the bag and into , also can drain out water through outlet pipe.( Please kindly read the product size before you buy) EASY TO PLACE–The top handle part can be hung on the rim of fish after used, the cleaner helps to your hands and clean the effortlessly. SWITCH BUTTON– Powered by 2 pcs “C” type batteries, with switch button to control on / off. See more product details