Three high-quality locks, all keyed-alike for convenience, in a handy padded carry case. Includes a coupler lock that fits 1 7/8", 2" and most 2 5/16" couplers, a push-to-lock receiver lock for 1/2" and 5/8" receivers and a stainless steel coupler latch lock adjustable from 9/16" to 2 3/4".