K. BellK. Bell womens Fun Patterns & Designs Low Cut Socks - 6 Pairs - Cool & Cute Novelty Gifts

What's the size of the socks?

These are for my daughter in law and she wears a shoe size 4; will these fit?

How can there be only 6 pairs when there are 7 days of the week. The photo shows 7 pairs. How many pairs are there, 6 or 7 ?

I don't like being barefoot around the house. Are these good, comfortable durable to be worn daily I stead of slippers?