About Twist-to-lock Deadbolt Design
When I saw the children & the older people locking the doors very difficultly, I felt so much pain;
When I saw the people failing to lock the doors while their hands were unavailable, I thought I must do something.
I thought and thought.
I wanted a lock ? a lock to lock my childhood…to lock it in my mind forever;
I wanted a lock ? a lock to lock my youth inside…to lock my love in my heart;
I wanted a lock that is always safe and easy to use, no matter the weather or if the power is out.