Due to the low price and yet different reviews I have this microscope, being considered as a gift for our 11 year old son ordered times. However, my experience with the microscope were not satisfactory: The focus I would describe as inferior. The eyepiece leadership is made of plastic and has down game while it is always difficult to move in the upper part, so that one does not notice the Endverstellanschlag properly. The resilient plastic Verstellrädchen make this not trustworthy impression. Changes to the magnification by turning the lens turret of the previously focused area when viewed through the new lens partially or completely disappeared from sight, and you have the place that we wanted to see, for example, greater search again only by shifting the Objektpaltte (which is annoying). The micro projector I no longer even tried, also once walked the broken lights and the bulbs could not be from me change without tools (spare bulb is part of the range), since the rotational version could not be solved. Moreover, the somewhat expensive Bresser microscope with USB, I have also ordered me to compare, provides a significantly better sharpness, is built really solid and has an LED as a lighting (see possibly my local review: "Bresser Junior Microscope Set PC / USB 40x-1024x (without case) of Bresser ").