Features: Engineered with 316 steel and corrosion resistant coating, this door Latches provide heavy duty security while preserving door integrity through scratch frees installation. Features 180 degree rotational flexibility and reinforced construction with person tapping screws for easy adaptation to various door angles and enhances load bearing capacity. Ideal for safety awake family , renters, and homeowners search Strong childproofing solution for sliding or swinging door. Perfectly secures patios door, French door, or interior entryways in residential and commercial space requiring reliable access control. The weather resistant 316 steel build ensures long service Performances in high moisture areas like bathrooms or coastal homes. Specifications: Material: 316 steel Type: screw installation/adhesive & screw(optional) Size: about 43x60x100mm/2x2.4x4inch Package Includes: 1 set Door Bolt note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.