I was very disappointed in this pump and decided to eventually upgrade to a Mendela hand pump. This pump is fairly inexpensive and works like the average hand pump, but it doesn't last. It gave me a hand cramp after almost 1 minute of pumping. Then, after only about 10 uses, the seal had loosened too much and the pump wont suction properly. Milk still goes in but only half the time and it takes twice as long to get a bottlel waste of money.
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