National Optical 157 Advanced Series Binocular Biological, Reconditioned Microscope

National Optical 157 Advanced Series Binocular Biological, Reconditioned Microscope. The refurbished National Optical Advanced 157 Series is a great choice for AP Biology, college courses, veterinary and intermediate clinical use, as well as industrial and hobby applications. All refurbished microscopes include a 1-Year Warranty* and free Benz Microscope Dust Cover. Would our exclusive, Soft Sided Carrying Case suit your needs better? Get one with your reconditioned microscope for just $30 more! That's $18 off the regular price, and only available at Benz Microscope. FEATURES: Cat. No. 157 Head Binocular, Inclined 45°, Rotates 360° Din Objectives 4X, 10X, 40XR, 100XR Oil Nosecone 4 Hole Turret, Ball Bearing Mounted Eyepieces W10XD 18mm with Pointer Stage  Graduated Mechanical Stage, 5.25" x 5.25" with Low Position Coaxial X-Y Controls. Substage N.A. 1.25 Abbe Condensor with Iris Diaghragm, Spiral Mount, Swing-out Filter Holder with Blue Filter Focusing Separate Course