Our commercial grade wedge dust mop head refill is Made in the USA of natural cotton and fits common "W" style wire frame. This quality made dust mop is the traditional favorite dust mop head for hardwood floors. Can be treated before use. Commonly used in hospitals, offices, schools and ideal for home use. This dust mop head works great in janitorial applications commercially or for industrial needs. Great for cleaning tile, laminate and most hard surface floors. Unlike microfiber the cut threads will sweep up larger debris and shake out cleanly. Natural cotton can be laundered and washed and dried - if necessary. To extend the life of the dust mop head shake out dirt and dust and with normal care this wedge mop head refill will last through many uses.