The Einwischer is really easy to handle and cleans very well. The cover can be easily removed for washing and re-place and easily withstands several machine washes. People who themselves do not know about the Leifheit systems should keep in mind that do not fit within the commercial stems with the Easy-Click function on the Professionel Wipers because it is a different lock than for example the window cleaner handle. An indication of this is missing, therefore only 4 stars. Those who already have a handle to the Easy-Click function, maybe you should take up alternate window wipers of Leifheit.