eSmart Deluxe Cherry Pitter with Suction Base, Best Cherry Olive Stoner with Container, Redesigned Cherry Olive Stone Remover, Cherry Olive Corer, Easy Squeeze Kitchen Tool (Red)

I ordered this last year but it didnt come in time for cherry season. This year when I try to use it, I find that there is no little diaphram that slides into the hole to separate the pit from the cherry. There is clearly a space for one to slide into. So it doesnt work for the smaller type cherries that I have. Very disappointed. Otherwise I think it would work