Utilizes your car's ignition key to reduce the number of keys on your key chain; Compatible with Chevy, GMC, Buick, and Cadillac keys with a center cut
Made of durable stainless steel with a 5/8" diameter pin for Class 3, 4, and 5 hitches (2 to 2.5" Receiver)
Features an auto-return spring that automatically locks when the key is taken out
Includes a stainless steel lock shutter to prevent dirt and moisture, plate tumbler sidebar for anti-picking, and double ball bearing locking mechanism