Collar is now made of tough T6 tempered aluminum for rugged use. We have added a durable, textured powder coat finish and integral finger grips for easy handling. Locking pin has all of the features, toughness, and reliability of all our standard DeadBolt Locks. Plus the added value that it can double as a Class 3,4 hitch lock! Available in both silver metallic and high visibility yellow (shown). Along with a great look, the yellow powder coat paint allows the user to quickly see the product in use– even from a distance!