Qwik-Clean Brush(Purple) - Qwik Clean Self Cleaning Hair - Easy Clean Retractable Bristles - Patented Detangler

ok so I have thick hair and dont mind pulling the hair out but have no luck getting the lint off with the balls at end of bristles, how does this work

I have very fine hair are the bristles on this brush hard on the scalp?

is it good for tender headed strong knotted lady's like me?im still running from mom and auntie over my hair!

Can this be use in shower?