Coupler lock for lever style trailer couplers requiring a 7/8 to 1 span. Locks trailer to hitch ball when in use. Helps prevent attaching to an unattended trailer. Coupler Lock with housing and knob cones for flush locking design. Pin Diameter: 1/4, Inside Width: 7/8-1, Overall Length: 4.50. Product Features:Double nickel chrome platePatented, pick-proof screw and lock securityFlush locking designMade in the USA
