This elementary microscope is an excellent unit for beginners. It features a 10x eyepiece, 10x, 20x, and 30x objectives, rack & pinion geared focusing, stage clips, reflective mirror or battery operated illumination. Comes with 1 plastic prepared slide and 3 blank plastic slides, 6 plastic cover slips and mounting media. The unit is 8” x 2.5 x 5”. Requires 2 “AA” batteries (not included).