About This Right Installation Height-Mount 8inches above standard or 12 inches above reflective surfaces for optimal performance Public Area Tamper-Resistant Design: Shielded soap opening blocks contamination; Secured battery slot deters loss; Isolated button guards settings. Battery power: 4 x AA batteries (not included) for several months, rechargeable batteries not allowed Commercial Grade Capacity-33.8 oz durable ABS polycarbonate and ideal for homes, offices, clinics, and more 5 Levels of Soap Adjustment: Customise the amount of soap according to different needs and save soap effectively. Ideal for all kinds of commercial premises Quick Screw Installation-Includes all mounting hardware for easy setup.It is not recommended for installation in damp, enclosed environments, as this may affect the pump's performance AIKE Support - One year manufacture warranty. Get support via Amazon message or our support email, we are happy to hear your vioce and greatly value your experience with us Overview Color : Silver Material : Plastic Brand : AIKE Product Dimensions : 5.4"L x 3.5"W x 9.5"H Shape : Rectangular