Sturdy fixing bolt design, no noise, provide you with a quiet using experience. Bring you a new and different using feeling.
The doublesided mechanical is made of highquality zinc alloy material, antirust, dura-ble and has a long service life. Its quality is guaranteed.
111 digit combination key password setting. Doublesided password, passwords are required for both internal and external doors, with channel antilock function and indoor antilock function, any internal and external locks or knobs can be interchanged. You can use it with confidence.
Completely mechanized, no battery or wired power is required. A great choice for you.
Water-proof design, this doublesided mechanical is suitable for wooden doors, patio doors, courtyard doors, indoor and outdoor doors.