AmScope 40X-2000X Advanced Home School Student Biological Compound Microscope with Mechanical Stage, Solid Metal Framework and Optical Glass Lenses 40X, 80X, 100X, 200X, 400X, 800X, 1000X and 2000X Magnification Settings with Precise Optical Glass Lenses Separate Coarse & Fine Focus and Abbe Condenser w/ Disc Diaphragm Graduated Metal Mechanical Stage and Sturdy Metal Framework Built-in Tungsten Light with GS and CE Approval 5-Year Warranty against Manuafcturing Defects