LT-6S 6x Professional Quality Linen tester with metal construction and fixed focus 1” 19 diopter 6x magnification lens. Has an industry standard one inch square measuring field with both 1/8"and 1MM increments for those precision measurements. . Used for measuring, checking fabrics & linens, inspection of ballistic materials, gem cutting and inspecting, CSI fingerprint and fluid examination, printers and graphic artists. Carrying case included.