Bausch & Lomb 5x, 7x & 9x Triple Lens Folding Magnifier Create seven different levels of power with your lens choice! Bausch & Lomb triple lens 5x, 7x & 9x magnifier gives you 7 different magnification powers of from 5x to 20x with a focal distance of 2.0" to .5" with a 20.3 mm (2) 15.2 mm (1). 20-80 Diopters Glass lens and durable plastic swing-away case. 81-23-67