Tudor Quick Release end links

They seem like an attractive idea, although I believe the picture is for illustration purposes only (the tabs look like they might prod your wrist at the moment?)

Although I don’t envisage ever taking the bracelet off my BB54, I’m tempted by these for future experimentation, just as I grabbed a half link from Uncle Straps. Is anyone going to take a brave pill and give them a try? I’m a little confused about the pricing and delivery (seems like a pre-order at the moment).