Strong steel spring clamp attaches to any surface to 2-1/4"-wide; PVC coat protects surface * Heavy-duty steel 20" flex-neck bends to any position - then holds it! * High clarity 3-1/2" glass lens with 4-diopter magnification; see fine detail with minimal distortion * Magnifier rotates 360-degrees for perfect viewing angle; adjustable tension * Versatile hands-free magnification for reading, electronics repair, photographs and collectibles