For electric breast-pumps with manual and automatic control. - Breast-pumps with manual control: do not seal the air port. - Breast-pumps with automatic control: place the obturating stopper. Shape and size of SK2 collecting kit fit all types of breast: large, medium, small and even inverted nipples. The KITETT collecting bottles are graduated up to 120 ml and can be screwed with standard baby nipples. Technical Details KITETT breast-pumps are equipped with a complete SK2 collecting kit delivered with a safety bottle W1: - unbreakable, - can be sterilized in boiling water or with cold sterilizing solutions, - collecting bottle, - cristal tube, - safety bottle.