Universal Black Ops 5/8 Locking Pin 3-Pack Keyed Alike (BLACKBPLP3)Features Works with all 2", 2. 5", & 3" hitch receivers Treated with an aircraft grade lubricant for longevity Locking Pins feature a 2" & 2 5 16" anti rattle stabilization spacer to prevent side to side movement The Black Ops Locking Pin from BulletProof Hitches ; the 2 pack offers the pins keyed alike and features a heavy duty rubber cap and 2 keys per pin. The top of the line locking pins have a universal fit; with 4" of useable length, they are