Vivitar 300x / 450x / 600x Microscope Set w/ 8 Slides & 2 Collecting Vials. 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-20 is equipped with all the necessities of a microscope. It has collecting vials, plastic slide covers, adjustable lenses and 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 set is great for beginning scientists. Buy this product and Get Free Shipping on a Vivitar 300x/ 450x/ 600x Microscope Set w/ 8 Slides & 2 Collecting Vials for $7.99 at Rakuten.com, a $42 Savings!