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 Sarah Foreman

So far they've been excellent and work just as well as the brand's 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.