Model # 17042: Ameda Nurture III Breast Pump and Double Pumping Kit 2004 Model by Hollister. This manually-controlled breast pump is small but effective for short-term, intermittent use. You can cycle as often as every 2 1/2 - 3 1/2 seconds by lifting your finger off the vent at the top of the collection unit. Suction strength is controlled with a four-level adjustment knob. Pump not included