These are tiger lily "real touch" hair flowers from Enchanting Memories in Canada.
They are kind of big.. hopefully you can tell from the pictures the approximate size. I didn't actually end up using any of these. They are all the same size. $15 each (this includes shipping in the United States, if you want more than one I can cut some off the price)
I have 3 white
I have one of the yellow
I also have one other yellow hair flower from the same company. It's more of the common silk type material hair flower, and it's quite a bit smaller. I actually did use this in my wedding.