Castro Caliper 0-20mm scale straight

The Castroviejo Caliper 0?20mm Scale (Straight) is a precision surgical instrument widely used in ophthalmology, microsurgery, and other medical specialties requiring fine measurements. It features a straight design with a scale ranging from 0 to 20 millimeters, graduated in 1mm increments, and is typically equipped with a screw-locking mechanism to maintain consistent measurement.