These suit the Aqua Mop Velcro system. These are designed to clean your floors and leave them dry in the shortest possible amount of time. The quicker a floor can be left dry, the less residuals will be left behind, hence making your floor stay cleaner longer. Clean and Dry Mop covers contain microfibre cloths inside the mop which help to hold up to 500mls of picked up solution in a similar way to how a babies nappy works. This keeps the surface of the mop on the floor drier at all times. They also have a raised surface around the edge of the mop that makes the mop glide like a hovercraft over the floor. This reduction of friction of 40% makes it much easier on the operator.