This is a brand new 2X auxiliary objective (Barlow) lens for stereo microscopes. It doubles the magnification power of a microscope. This lens comes with a 1-7/8" (48mm) mounting thread and goes with ZM series stereo microscopes. Its retail value is more than $200.

Features & Specifications: 2X Magnification Power Doubling Magnification Power of microscopes 1-7/8" (48mm) Mounting Thread 5-Year Warranty. Unbeatable Low Price. Availability: Usually ships the next business day. 2X Auxiliart Objective Lens For Stereo Microscopes (48MM) ZM20$99.98