Mini 45x Adjustable Focus Microscope Magnifier w/ 2 Led Light Coin Grading Loupe +Bag Super mini size, portable 45X 2 LED lighted world smallest jeweler's microscope A on/off switch to turn on/off the light, GLASS lens Very solid with high quality. Light and small. Use: Industry, Circuit board and printing, Medicine, Horticulture, Coin and stamp, Geography, Education, Home and office