I have had the product for 2-3 months and I have never used it as it is not suitable for the board I wanted. The triangle is bigger than the board, so it is useless to me. Of course, it may work for others, but at least for my board, it did not work.

The triangle does not open the doors of the elevator that the receptacle touches on the door (you see it a little above your head like a D) but only when it is in the box, that is, vertical (you don't see it easily).

Although made of good material, its shape does not always help in its use, for example when you open a door, you cannot complete the cycle because it is on top of the frame.