Do not require electricity or battery: Single Nozzle, Self cleaning Nozzle. Normal water (Cold water) only be used, Adjustable pressure Control. Fitting range from 90mm to 220mm, Ultra thin design for better fitting (9.8mm), Hygienic Retractable Nozzle, Anti-Bacterial ABS Material with Full Body Panel. Accessories Include T-Junction, Nuts, Valves White Tube & Washer. BENEFITS: Better personal hygiene and cleaning, Better skin care and more comfortable to use, Easy for people with permanent disabilities or handicaps, Relief for People with temporary injuries, Self-cleaning for children, Easy to use and handle, Controls the usage of water, Keeps the floor neat and dry.