Our product fits the Navigon perfectly.  It's extremely easy to apply too.  Three easy steps:

1.  Wipe the GPS screen clear of all fingerprints and dust.  We even include a soft cotton cloth to do that!

2.  Partially peel off the backing and fit to the corner of the GPS, then peel off the rest of the backing while pushing down.

3.  Peel off the front.

That's it!  Takes a minute and you're done