CURT specialty locks are a line of unique towing locks that provide the security you need to keep that trailer and those toys safe from theft. It does not matter where the road takes you; if you are towing, you want the peace of mind to be able to enjoy yourself, and that peace of mind only comes with a CURT lock. CURT offers specialty locks for a variety of towing applications to make sure you have all the additional security you need for a safe and successful trip. The CURT wheel chock lock is an excellent way to protect an unattended trailer or camper. It is a quick and simple lock to apply, clamping over the wheel and remaining secure until it is unlocked using one the three provided keys. It is also expandable to fit a variety of tire widths. The wheel chock lock can be used on your trailer or automotive vehicle such as a car, truck or even an ATV if needed. For all of your trailer security needs, look to CURT for the lock to keep that boat, RV, toy hauler -- whatever it may be! -- safe and sound.