TBS-2.5 Large 5.5" x 4" inch 2.5x rimless lens industrial quality magnifier and is an ideal work tabletop magnifier ideal for reading, inspection, sewing, soldering, threading, polishing. The pivot lens frame allows for angle adjustment for the ideal working angle. Professional quality piece suitable for commercial use. Also very useful for medical applications including magnified inspection of petri dishes, slides, gels, x-ray films, text, and anything placed on the illuminator or mini light box. Heavy Solid construction suitable for commercial and industrial use. Widely used by industry and research facilities.