The OD-65, MagniFly™ 2x Power 4″ Hands Free Fly-Tying LED Lighted Gooseneck Magnifier with C-Clamp and AC/DC Adapter is a fully-adjustable, flexible arm hands free magnifier that attaches to your table-top or can be clamped to most fly-tying vises for convenient hands free use. Its large 2x power lens gives you a sharp, distortion-free view and 3.5x power spot lens allows you to see even the finest details with ease. Three super bright LED lights allow for use in low-light conditions. The Magnifly™ magnifier operates on 3-AAA batteries (not included) or supplied 4.5v DC adapter.