So it goes under any doors. SO USELESS.
It should be a door with a minimum of 2 cm day which is absurd, no gateway in the world has 2cm day! Imagine the loss of heat, the wind sweeping or even a person kneeling could see through ...
Also, I found a door under which it passes (that of my toilet) and it does not block at all, it is pushed through the door also because it not nadhère ground ... short.
Keep your 7 euros.