LT-6R 6x Professional Quality Double Lens Metal Linen tester with Precision Glass measuring Reticle and fixed focus 1” 6x magnification lens. Both 1/10th 1/100"and 1MM and .1mm increments for those precision measurements. Used for measuring, checking linens, gem cutting and inspecting, and printers and graphic artists. Carrying case included. Glass reticle requires this model must be handled with gentle care.