The Spontex Extra Flat Mop head refill can be used dry or wet on all types of hard floors for efficient cleaning. The large white fluffy microfibre mop head refill is made of thousands of tiny fibres to increase the number of contact points with the surface, making it more absorbent and efficient at picking up dirt and dust and is perfect for dry use to efficiently pick up dirt, dust and hair all around the house. Suitable for dry or wet use with water or floor cleaner on all types of floor including tiles, laminate and wood the mop head refill is made from 100 percent polyester which is machine washable up to 60 degrees centigrade.