If You Care Coffee Filter Baskets ( 1x100 CT )

I'm confused with the answers about what size baskets these filters fit. Some say 4-cups, some say 8-12 cups. (I have a 4-cup machine.)

Do these fit 4 cup drip coffee makers? I have a small (4 cup) drip coffeemaker and it's really hard to find unbleached 4 cup coffee basket filters for it. Thanks for your help.

Where are the filters made?

Are they biodegradable?