Hi Dianne, I'm in the process of changing over to these mops on your recomendation!! How many washes can the mop heads stand before looking tired? I currently use the Vileda Professional haven't had a problem personally but after a few washes the heads look clean but a bit shabby and tired and the staff do find it easy to snap the flimsy plastic push on fitting on the Handles, hence the change. Thanks Pauline