Introducing easy access ii locks featuring 360 degree swivel heads for easier access and an integrated key slot cover to help protect lock from dirt. The square key design virtually eliminates lock picking for the highest level of security. For use with receivers towing class I-IV, this combo includes a dual bent pin receiver lock that fits 1-1/4" or 2" square receivers and an adjustable 3/16" diameter coupler lock; both are keyed alike.