Review on Extra Large Eraser Sponge (100 Pack) - Premium Melamine Sponges for Multi Surface Power Scrubbing - Bulk Cleaning Pads for Bathtub, Floor, Baseboard, Bathroom, Wall by Michelle Kelley

So far they have been excellent and work just as well as the original magic erasers. The only difference I noticed is a slightly different "finish"/feel. They appear to be a little "shinier" than branded ones (if that makes sense). However, this doesn't seem to affect performance; they clean just as well. I use them to remove paint from slot machines where art has been painted over. This can be a tedious process that can be very expensive to get right very quickly (Note: many people use CitriStrip or something similar, but it can really mess up the main illustration if you leave it on for even too long. Rubbing alcohol + eraser works best) so having 100 packs for the price of EIGHT brand names isn't a problem.