It cleans the crayons.
I completely forgot that these things existed.  My daughter had taken it upon  herself to redecorate our home with  crayon every chance she gets.  Until this product arrived, I have been scrubbing my walls, blinds, and various surfaces with pure elbow grease.  It is ridiculous how powerful  these magic  erasers make me feel.  "CLEAN ALLLL THE CRAYONS"
Rating: 5 stars