Elegant and practical, with a lifetime guarantee on backup key. The Schlüsel can at any time ask if you know the serial number. So one should both keys lost, you're gonna get from Kensington free replacement. However, to me the plastic protective ring has been lost. The castle has followed my notebook chassis easily scratched (so be careful: rather take off sticking lose, the question is only why Kensington not so far ahead). After that I found that I can settle the MicroSaver of my notebook without using the key (the lock remains closed) !!! That gave me the total terror. Since then I have failed to make the notebook stand alone and use the lock from Kensington now just at my desktop computer, is no longer with the notebook, and here it seems to work, because the trick does not apply. It is probably the notebook, because my PC sits the castle well. I recommend not to rely on a "Kensington-compatible" safety connection is really secure. My notebook is from a reputable manufacturer, mind you. It is enough to easily rotate the wire and you can pull out the thing. So be careful!
