To be honest, this product is not as sturdy as you pay hundreds from US local hardware supply. If your project is not very serious, this could get you complete with low cost. I installed it within 20 minutes because the door has pre-drilled holes. Installation manual.....? As many have said, you won't understand what they want to tell. Good thing is you should able to figure them if you layout them on floor. But I don't find the handle loosen, as well some said you can giggle the handle to open the lock. These worried me before I ordered it. For the low cost, gave it a try and outcome not bad. Down side is that you really can't duplicate key here in US, may be in Asia or China. Restaurant Owner said OK, ordered, installed, completed and every body happy in this project.
William W. 
