When you enter in a house, you get in by a certain portal, that's call a door. In the FDGHLH, that door is made of glass, thought glass that can resist any type of impact. I assure you, I tried once to break it and I was not able! This door hasn't just this one feature no! You can also interact with it and unlock it with a simple lick of your thong. Juste beware in winter to not stick to it. Here's an example of the durability, the resistance, the strength of our perfect glass door.