M8-V 8x Measuring Magnifier. Our Value priced 8x illuminated scale measuring magnifier is perfect for the collector or worker that has to do simple measuring inspections. Our IM-8V has a 10mm long scale with 100 measuring increments of 0.1mm. Ideal for simple inspection of documents, watermarks, hallmarks, type size, stamps etc. Has illumination for enhanced viewing uses 2 AA batteries.