These mops are designed to Scrub non slip (safety) floors and leave them dry in the shortest possible amount of time. They are designed to pickup 600 mls of solution while moving over the floor without the cover tearing. Scrub and Dry Mop covers contain microfibre cloths inside the mop which help to hold up to 600mls of picked up solution in a similar way to how a babies nappy works keeping the surface of the mop on the floor drier at all times Most healthcare facilities now install non slip flooring in wet areas like kitchens, bathrooms, utility rooms and around hand basins in hallways. These gritted non slip surfaces are very difficult to clean as they rip standard mops to pieces and hold onto lots of dirt and grime. For use on shiny floors