This sliding-door lock grants for a wide range of movement for sliding doors. The unique, low-profile works for a multitude of sliding door designs, even doors that retract into the bulkhead. The flush design allows companionway doors to slide into recessed pockets without interfering with the helm station.Owner's Manual Features: Allows for 4”- 6” more door travel than traditional sliding-door lock styles Safety lock prevents the door from being locked from the inside. Includes striker and two keys Includes mounting hardware Specifications: Operation: Sliding door Profile: Flush Finish: Powder coat Color: White Access Restriction: Key locking Sealed: No Gasketed: No Door Thickness Range: 3/8"-1/2" Materials: Aluminum Latch Dimensions: 4 1/2" x 2 1/2"