1. 1. High quality materials: The rotary door lock is made of high-quality materials, with thick chain links, long service life, and smooth edges. It will not cause harm to the opponent during use 2. 2. Widely applicable: Suitable for locking windows, blinds, barn sliding doors, barn doors and double doors, doors, pet doors, cabinet furniture, windows, bathrooms, garages, and shed doors. 3. 3. Black surface: Retro style, simple and elegant exterior design complements the decorative style of doors and windows. Meet the aesthetic needs of different users. 4. 4. Easy installation: The lock buckle is equipped with 6 screws, which are installed on both sides for easy installation and maintenance. No complicated installation steps are required, just fix it on the door and secure the lock buckle to the door with screws. Then align the door lock with the hole on the door frame, gently press and tighten to complete the installation. Finally, turn the knob to open or close the door lock