I bought this and came home to put it together. Right away it seemed so unstable and thought I had done something wrong. It just didn't seem sturdy at all. I re read instructions to make sure. We put batteries in it and put our then 10 pound daughter in it. It wouldn't even swing her, even on the highest speed. I'm sure I just got a bad swing but it made me not want to buy anything from Cosco again. I returned it that day & spent more money and got a plug in swing.