4 Pack Magnetic Cleaning Cloth Dry Erasers For White Boards - Extra Strong Magnet - Compatible with all Whiteboards - Ideal For Classroom, Home and Office Use - Reusable and Washable - 10'' X 10''

Works great erases what’s on the white board just fine but do note there will be the residue or color left on the material so don’t get it close to your clothing. I haven’t washed one yet as I haven’t needed to do that so I can’t comment on how it holds up to even a soak and hand washing. It was a great buy for the price. Also the magnet works great and stays on my white board just fine.

I like these eraser cloths. I have a four of them on my two whiteboards in my classroom. Having the magnets is very convenient. They never fall off the board, they are always easy to find. They erase really well, even when I forget to erase my board and the ink sits overnight, the next day the cloth takes it right off. Unlike some other cloth erasers I've had before these stay relatively clean, or at least it seems to. I've had cloths that turn black from use, but I've been using these since August and haven't need to wash them at all.

These little cloths erase cleanly and the magnets generally hold them in place if your white board is metal backed, of course. One, out of four, magnets seems to have little magnetic field and will not hold the cloth in place. Yet, I would highly recommend these.

These cloths are good quality. The magnets are strong enough to hold them on the white board and they never fall. There is a little resistance if the magnet gets stuck on the board while you are erasing. The kids have to rub fairly hard to get the ink off the white board. It is not a easy to use as other dry erase cloths.

I haven’t had to wash my white boards at school (that I use all day long) in the 2 months I’ve used these cloths. There’s so much less marker dust on the marker tray beneath. Love these!! Edited to add: they don’t work as well after washing! But still useable!