Many years ago someone invented a cable lock system that protected your bicycle from theft. Not so long ago, Kensington took that idea and applied it to a cable that was designed to secure your laptop. Now we have another product that uses this basic same idea. It’s the Rock Lock for your guitar. It’s made in the USA of heavy-duty braided steel cable and a special locking clamp that fits across the guitar neck like a capo. The Rock Lock’s clamp has a 2-1/8″ wide by 7/8″ tall opening that has been designed to work with most 6 string acoustic and electric guitars. It will not work with Flamenco, Nylon string, or Spanish guitars but may work with some 12 string or bass guitars depending on the neck size. This device probably won’t prevent someone who is very determined (and has some heavy duty wire cutters) from stealing your instrument, but it should help discourage random grab and run type theivery. The Rock Lock is available for $49.95.