ELI5: Explain Like I'm 5

Window shutter

Ok, so you know how when it's really bright outside, sometimes you have to close your eyes because it hurts? Well, windows can't close their eyes like we can, so that's where shutters come in.

Shutters are like big doors that you can put on the outside of a window. They are made of wooden or plastic slats that overlap each other and can be opened and closed.

When it's really bright outside or you want to keep the sun out, you can close the shutters to block out the light. It's kind of like using an umbrella to block the sun when you're outside.

And when you want some light to come in, you can open the shutters again. It's like taking off your sunglasses when you go inside.

Shutters can also help keep your house cool in the summer and warm in the winter by blocking out the heat or cold from outside.

So basically, shutters are like big doors for your windows that can help keep out the bright sun and keep your house comfortable.