Thieves are not happy about this heavy duty trailer coupler lock
If you are concerned about the security of your trailer, take a look at this Universal Trailer Coupler Lock. It provides heavy duty protection and a key lock.
The strong lock mechanism resists the efforts of lock pickers and crowbar-prying trailer thieves, yet is easy to install and remove--if you have the key. Note: Do not leave the key under your door mat.
The lock is also resistant to rust and corrosion and comes in a jaunty yellow color to match your sunny personality.
The lock is available at Amazon.com.