Features: 1Effective Anti Theft Protection: Door and window safety lock can greatly improve the anti theft performance of doors and windows, and effectively resist burglary and other malignant criminal acts. 2Child Safety Protection: Door and window safety lock can control the opening degree of doors and windows, effectively preventing safety hazards such as accidental falls or loss of children while playing. 3Humanized Design: The limit lock fully considers the needs and habits of users in its design, and adopts an easy to operate switch mechanism, making it convenient for users to control the status of doors and windows at any time. 4Easy to Install: The installation of door and window safety lock is very simple, without the need for complex installation tools and skills. Users can install them according to the manual and the guidance of furniture store employees. 5Good Workmanship: Exquisite workmanship, beautiful appearance, small portable size, providing you great using experience. Item Type: Door and Window Safety Lock Product Material: Zinc Alloy Weight: Approx. 61g / 2.2oz Package Included: 1 x Lock&nbsp 2 x Key&nbsp 4 x Screw&nbsp 2 x Hole Cap&nbsp