The day my son was born I needed to help stimulate my breast so I tried to use my pump. Let me say that I was excited to try this product thinking that it was going to be useful. I read the reviews and thought this would be very good to start off with. It does nothing. Sorry to say but I don't know how people can give this product any rating because I paid $45.00 for a product that is non-returnable. See what happens when you try to saw money........So please if you want to pump buy a good electric one. It will run about $100.00 but at least you know it will be worth it. I bought a Medela and it works very nice. I give that one a five star for price and use.