I just LOVE these sponges. They are fun and easy to use. It takes little effort to use this sponge to remove marks, dirt, stains. It amazes me. A word of caution though -- you must read the box and see what surfaces are safe to use with the sponge. I haven't had one problem but friends and relatives that have used this report that it can damage surfaces.

I don't know how these work, but they do. Bike tire marks, shoe marks, pen marks, blood, whatever. Add a little water, and these things remove all kinds of marks and scuffs from painted walls. The first time you see them work, it's kind of like magic.

Spend 5 bucks and 15 minutes cleaning your walls during a move out and get all your security deposit back.

i really like these for cleaning walls, even rough ones and baseboards somehow they work better than any sponge because they don't leave any residue you can use each one over and over

Used this all over the house. Works unexpectedly well.

The only thing I've seen this product have trouble erasing is stuck-on tape goop. Otherwise, it erases black shoe/tire skid marks and keeps walls and wood trim mark-free. Just go easy on flat and matte water-based paint.

a miracle product. nuff said.

I will never use anything else to clean my bath tub!

These work really well at cleaning my black Macbook which can get a lot of smudges.