Vivitar microscopes are made of the finest materials and with the best optics to ensure that you get precise answers and solutions to all your endeavors. The MIC-1 is equipped with all the necessities of a microscope. It has 3 collecting vials, 3 plastic slide covers, 3 adjustable lenses and 3 collecting lamps. This is a great beginner level biological microscope with advanced features. The electric illuminator provides direct control of light. A mechanical stage is standard equipment with knobs controlling both axes for easy centering of specimen slides. This 20 piece set is great for beginning scientists.