Concrete Crack Gauge, Color Clear, Graduation Color Black, Graduation Mark Style Printed, Graduation Marks 1 mm, Graduation Units Millimeters, Highest Horizontal Measurement 16.5 mm, Highest Vertical Measurement Not Applicable, Includes Protective Case, Lowest Horizontal Measurement 0 mm, Lowest Vertical Measurement Not Applicable, Material Plastic, Orientation Horizontal, Product Type Concrete Crack Gauge, Reading Direction Bottom to Top, Left to Right, System of Measurement Metric