Pretty small, to handle only the 3 fingertips, difficult for users over 7 years with a corresponding hand size. No fixation of the open pin on the sleeve. Can not be fitted on the mobile phone. If whistling or blade signal have installed, so you can find the parts more easily! Not really recommended, unless you want unbedngt minimini! On these peculiarities should be noted in the item description, with indication and link to the Nokia pen stylus pen. Then buyers can choose between minimum dimension and function!