The size is adjustable. I've been using this for a Archos 43 Internet Tablet. Although this is in the unfolded floorstands of port for charging hidden, but can be folded away the two small tabs below and receive with the lateral locking nevertheless a firm hold. So the connection area from below is completely restored.
I use the holder on the small side window inside the A-pillar in the Opel Astra. Fits right into it. Only in the holder of some "wobble" when driving over bumpy roads I have deducted a star. This is a bit of disadvantage somewhere but also logical because the neck is flexible.
I am fully satisfied with this holder. Strong buy recommendation