Door can transfer standstill when at 90 degrees
Closing and locking speed can be adjusted
The fastest closing time is 3 seconds from 90 to 0 degrees
The slowly closing time is above 40 seconds
It will create resistance to avoid too much forces when openthe door at above 65 degrees
It can pretend to hit the wall
And the resistance can be adjusted
It will set 20 seconds to closing the door from 180 to 65°by factory
It can be reduced to 1 second by the screw adjustments
Closing forces are chosen in accordance to its size and weightof the door
Forces adjustable door closer, can be adjusted to minimalforce, to reduce resistance to facilitate the old or person withdisabilities