Most standard door is valid for knob/arm lock and sliding. For caravan door lock/pocket door lock, please see the size drawing. What does it do: It is used to fill the gap between the door lock and the door. It is used to cover damaged areas such as scratches around the door lock. Used to strengthen the loose lock. It is used to support and correct the door lock when the door opening is pierced incorrectly or the hole is damaged. Features: Made of 2 mm thick hardened steel for better support. In particular, when the door lock screws are excessively squeezed, they are not easily deformed under pressure. The edges are passive to prevent the scratching of the hands. Elk Setup that does not require detection: It comes with a 3M double -sided adhesive pad for easy assembly. . Discity: Matte black, smooth white and satin nickel. Matte black: Fingerprint and stain - light tissues. Smooth white: piano brightness for modern decoration. Satin Nickel: Painted. It stands out with a rust -resistant coating and can be used in dry or humid environments. The lock plate is ideal for outer and internal doors required. . Figure: Available in round, square and rectangle.