I cringed reading this.
Guys, you don’t want to use magic erasers on your bands. Doing so ruins the protective coatings on the band, and slowly eats away at the flouro. It’s essentially rubbing your band with fine sandpaper.
Magic eraser was the only thing that was able to remove blu stains by my white and red apple watch sport band. Where water, soap, alcohol and bleach fails, magic eraser do it.