Both stamp surfaces should be suitable for most portafilter. The Espresso handle fits comfortably in your hand, is made of stainless steel and easy to clean. I take him for an espresso machine "Gastroback Design espresso Advanced Pro". The major die is too large, the small diameter slightly smaller than the filter element. Are obtained with the small stamp still good results, however, must take some care not "herauszuschaufeln" the coffee grounds. The supplied with the espresso machine plastic handle is vastly superior to the Cilio-pushers. In result very recommendable and reasonably priced.
