Vanguard Extended Lenght 3" Steel Premium 5/8" Hitch Lock Pin for 2" Receivers The 5/8" pin fits all Class III, IV and V receiver hitches O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use Usable length of receiver pin is 3 inches. Will work with all Toyota's enlarged hitch receivers Strongest locking pin on the market Flat high security key. Resists attempted drill outs