BOLT 7019344 1/2" Receiver Lock for Chrysler, Dodge, Jeep and Ram Keys Opens with your vehicles ignition key eliminating extra keys on your ring; Works with Dodge, Ram, Jeep & Chrysler keys. Please verify fitment by looking up the year, make and model of your vehicle Please Note: Stainless Steel 1/2" diameter pin ONLY for use with Class 1 and 2 hitches (1 to 1.5" Receiver). For Class 3, 4 and 5 hitches (2 to 2.5") receivers, you will need our 5/8" Receiver Lock Auto-Return spring locks automatically when key is removed Stainless steel lock shutter to keep out dirt and moisture, plate tumbler sidebar to prevent picking and bumping, double ball bearing locking mechanism Limited Lifetime Warranty