This Hands Free Wall Mounted Soap and Sanitizer Dispenser holds most liquid soaps and sanitizers. Holds a large 40 ounce (1200 mL) capacity that requires less frequent refills. Automatic, hands-free operation is more hygienic than traditional dispensers. Includes keys to lock to prevent theft, vandalism, or tampering. Battery operated, requiring 4 C alkaline batters (not included).