LT-5P Resin Linen tester with fixed focus 1” 16 diopter 5x magnification lens. Both 1/16"and 1MM increments for those precision measurements. Made in durable resin. Used for measuring, checking linens, gem cutting and inspecting, and printers and graphic artists. Lightweight yet durable resin construction make this linen tester weigh a fraction of the metal ones. Comes with leatherette storage case