Dosage/Output: 2.8cc. Application:Shampoo, shower wash, facial cream and conditioner Strokes to Prime : 3 to 5 times. Structure is patented design, which prevent product from contamination when showering The spring is out-setting, so no worry about contamination of liquid from spring. Pump can work well when liquid contains granule or is sticky. Actuator is down-locking with multi-waterproof, easier for transportation and more reliable. Colors are at your choice. Artwork such as electric plated, aluminum collars, silk printing and foil gold are also available. Many closures are available for matching your different bottles. Raw materials are safe and Eco-freindly. They conform with ROSH and FDA tests. Lock Type: Down Lock