I see that link has them out of stock, Call S&W, if you have the patience to wait on the phone they will probably send you them free (they did for me). If you have no luck with them, send me a PM with your address and I'll send you one.
You might want to double check the pad you order, the 10rd 9mm tube is shorter and doesn't use the same as 40/357 10rd. I've got the finger rest(curved)pads for them by accident before.