Effective for glasses and small items, and particularly for the shaving heads (water + a few drops of dishwashing liquid). These objects have regained their shine like new in minutes. The handling is very simple, the LCD screen is used to program the time of the next cleaning fouling of the object to be cleaned, this is very convenient. The cleaner Sanitas SUR 42 is a good investment, it is a powerful cleaner for its size, ecological, for a very affordable price.