This soft fleece is an add-on for the rough surface of the inside magnets: 220.53, 220.54, 220.55,220.56. Aquariums with acrylic panes can be cleaned gently with this fleece.Order two units for magnet 220.57.
Our Price: $1.71
The live help is excellent by the way. Will re-use your shop again as I found you to be very helpful.