Felt Dryer Balls replaces dryer sheets - I, Jennifer, have made these, use them, & will never ever in my life purchase or use another dryer sheet. EVER. They're a static reducer, a drying time reducer, a fabric softener, & if you add a few drops of essential oils to your dryer balls, they scent your clothes. I AM IN LOVE! These are fancy ones. That's an option if you want them all cute, but mine are very simple.