Made from high-strength Metal alloy, the set excellent resistance to and wear Including an external cylinder, an indoor anti knob, and a matching indoor ball, a complete set meets the needs of door protections and use Features rounded or modern square handle designs with matte black finish, perfectly various home decor styles for enhanced aesthetic appeal : The handle, cylinder, and knob all have standard installation dimensions and do not require additional openings, making it suitable for installation on most wooden doors and anti-theft doors Easy to operate, press down to open the door, lift up to, and can be easily used, suitable for scenarios such as entrance doors and indoor doors, Manufacturer: carotoe