Specifications: Material ABS plastic Hole diameter 20mm Board thickness 14 to 16mm Lock screw distance Approx. 39.19mm Plate hole distance about 20mm Package size 116mm*87mm*9mm Step 1. Drill a 20mm hole in the cabinet and mount the round ring;2. Install the lock base through the round hole;3. Tighten the lock with longer screws using a Phillips screwdriver (Tips: The distance between locks is 36.19mm);4. Fix the “L” strike plate with shorter screws on the lock tab chip (Tips: The hole distance of the strike plate is 20mm);5. Press the lock button to lock the drawer;6. Press the button again to open. Compatibility Suitable for boat, yacht, horse box, caravan, caravan, caravan, drawer, cupboard, cupboard, door, furniture. Drawer Handle The drawer door knob lock can be a handle when the drawer is opened. Package List Lock Buttons.Each lock is equipped with 4*screws, 1*replacement button cap and 1*strike plates