I bought the ball pump, because I oriented myself to the reviews of other buyers. There was only good reviews, I thought, the pump can not be that wrong. And it has paid off so far. I immediately all the balls (and there are quite a few) of my children inflated. That was fast and without bending the needle. The elastic intermediate part I like that, because this needle is not so burdened. Too bad this is not a replacement needle case (in the event that it nevertheless times bends or breaks).