I folded a sheet in half. the ends will reach the holes for swiffer if mop head is in the middle of the folded sheet. I was surprised how many cat hairs the sheet grapped. If I want to use the mop wet with cleaner I use a spray bottle to spray the floor or the sheet once it's attached to the mop. have found many uses for these sheets to clean around the house. even wet they don't tear, rip. these are also good for cleaning cat messes off carpet.