1. Door Duty Loading for 3 hinges: 0-100kgs. (Could be higher with proper set up.)   

2. Passed ANSI/BHMA A156.17 Grade 1---1,000,000 cycles testing. By UL. 

3. Combine a hinge, closer and stopper into one product!- Beauty Up! Auto Close!  

4. Easy installation and low maintenance fee compared to floor closer.-No more holes on the floor! 

5. No hydraulic system inside!