First Rate
Really like these.  They perform as well as the nationally advertised brand but cost waaaay less.  I use them on the boat (great on the hull and fibreglass areas), water line on vinyl pool/steps and spa, brake dust on wheels of our vehicles and general cleaning around the home - kitchen, bathroom etc.  Brings plastic outdoor furniture up beautifully.They do crumble - but all of this type of sponge crumbles.  I cut them up to make them go further.
Rating: 5 stars