Aquarium Cleaner with Battery-powered Siphon/electric Vacuum Fish Tank Gravel Washer/aquarium Battery-operated Water Siphon/ Aquarium Vacuum Cleaner Easy to install and operate, use 2 C/LR14 batteries (not included), avoid any electrical shock; Remove debris without removing valuable aquarium water; Telescopic design, suitable for small and large aquarium; Waterproof structure, to keep the motor safe and effective; Easy flow rate (520L/H) allows for spot cleaning and getting to difficult-to-reach areas; Packaged with Beauty World logo special shopping bag, which is practical and environment-friendly