EMR-3x-6x Duel lens 3x-6x Educational Magnifier Ideal Low Price Magnifier Option for Classrooms, Optical grade rectangular educational magnifier with dual power 3x 1 ½ x 1 inch main lens and 5/8 inch 6x bottom lens. Made in USA
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\n- - Lens Power/Magnification - 3x.6x
\n- - Lens Diameter 1 3/4"
\n- - Lens Diopter 8,16
\n- - Lens Focal Length "4-1.7"
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