Carson Optical Deskbrite Plus Magnifier Fly Tying Tool - With its large 5in, 8x viewing lens that's illuminated by 48 evenly lit LEDs, you're assured of bright, crisp magnification. The adjustable arm is all aluminum and built for extensive use. In addition to the arm, the glass head rotates for even more working control and optimal positioning. The entire unit leaves you hands-free to pursue your work.