all you have to do is hold it under running cold water. All the lint comes off. Then lay the slider down with the underside up to the air and let it air dry. I kept the plastic 'bag' and the folder that was inside to store the slider in. That way, nothing gets to it to get it all linty. However, that being said, lint does seem to be attracted to that side of the slider no matter how careful you are! Oh well. :-)