I was dubious when opening these as they were grey in appearance unlike the branded white ones but they are just as effective at cleaning.
Once dampened they easily remove marks on paintwork but as with all other magic sponges do not rub too hard as they WILL take your paintwork off too.Wipe one stroke at a time.
They do not leave any residue and once dried any marks have vanished.
These did take about a month to arrive but for the price (£2.18 for 10) it’s worth waiting if you just want to restock your cupboards.
I would recommend.