Wow, just wow!!!!! This is one of the best made (other than name brand) microscopes I have the privilege to own. The entire body is constructed of metal / steel. The care in design and assembly is obvious as the each piece is impeccably well made. The binocular / monocular (interchangeable) eye piece is a very quick screw-clamp on style which is quite versatile. The kit is incredibly all-inclusive and also brings an adapter for phones / cameras for quick and easy recording and documenting. There are multiple interchangeable eye pieces for amplification of this compound microscope. The magnifying pieces are of traditional magnifications of 4, 10, 40 and 100 (remember to use oil for the 100 lens.) The included slides are a nice assortment of traditional specimens. The light path has very smooth adjustment, and the internal eye pieces are completely dust free (I have come across many different brands where manufacturers have left dust and hs been quite intrusive in field of view). This is a medical school / professional grade microscope. Give it the best care and it will give you a lifetime of incredible use.