Secure and simple to use design - 90-degree locking buckles enable easy operation while the lock remains securely engaged to deter unauthorized access. - Easy to open and close without compromising protection, helping you quickly secure rooms. Multifunctional protection across spaces - Aluminum door lock screws suitable for securing doors and windows in various areas such as bedrooms, bathrooms, garages, gardens, and sliding doors. - Provides comprehensive protection against unauthorized access and enhances overall safety for your home or facility. Durable and reliable construction - Made from robust aluminum to resist rust and corrosion. - Highly resistant to deformation and breakage, delivering long-lasting performance and stable security. Flexible installation and compatibility - Compatible with left- and right-opening doors and suitable for a wide range of door types. - Comes with mounting instructions for quick and safe installation, with no extra tools required. 2-3 practical use scenarios - Use in interior rooms such as bedrooms or bathrooms to secure entry doors and add a layer of privacy and protection. - Use on exterior-access points like garages or garden doors, as well as windows, to deter tampering and improve security. - Use on sliding doors in homes or offices to provide a quick, reliable locking option without complicated setup. Product highlights - Material: aluminum - Function: sliding door and window security with 90-degree locking buckles - Installation: left or right door compatibility; no extra tools required with included instructions - Performance: rust and corrosion resistant; resistant to deformation and breakage for long life