One (1) Receiver/Hitch Lock Keyed Alike. 2 Keys Included. This lock is able to be keyed alike. For example, if you'd like a 3pk, order the 2pk and a single lock and we will key them all the same. 5/8" (16mm) Diameter Receiver/Hitch Locking Pin w/ a 3-1/8" Long Shaft Featuring the "Push to Lock Security". Stainless Steel Construction Resists Corrosion w/ Swivel Head Design That Allows For Easy Access. Extended Length Fits 2 in. and 2-1/2 in. Hitches. Class III & IV and 10,000 lb Load Ratings