Review on C.T.Johnson TCL1-YL Deadbolt Blockhead Trailer Coupler Lock - Secure Your Trailer with Ease by Troy Early

Very handy for trailers! , but almost impossible; It took me twenty minutes to cut with a razor blade and use a screwdriver to pry the cardboard from inside the device. I can understand the purpose of ensuring the buttons are separated from the device during transport, but storing the buttons inside the device on a piece of very thick cardboard is too much! should be installed at the trailer socket. Is it just me, or does using a soft metal like aluminum indicate a lack of security? I would love to see a stainless steel version of this! The fifth star here is due to the struggle with removing keys from inside the device.