The TL38 is easy to install on your unattended trailer. Simply slip the lock over the coupler, engage the 5/8" steel pin, and push the lock mechanism. This secures the bracket on the bracket on the coupler. Model # TL-38 Features: For recreational trailer use Fits 1-7/8-2" couplers Covers the following brands: Fulton, Feather Light, Ranger, most bumper pull RVs.
