Mulslect Automatic Mounted Spring Door Closer Stainless Steel Adjustable Surface Self Closing Door for Residential/Commercial Use

it's not working for my door, adjusted to maximum tension but couldn't close my main door, which is around 75lb.

Useless product. You can only increase the tension of the product, there is no way to decrease it, so if you tighten too much, too bad, it's permanent.

Works great.EASY TO INSTALL