White PD Ruler - 6 Inch

The White PD Ruler - 6 Inch features a 6" scale (5/8" wide), with precise millimeter and 1/16" graduations for accurate optical measurements.

6-inch ruler with a 5/8-inch width, perfect for measuring pupillary distance (PD)
Dual scales: graduated in millimeters and 1/16 inches for versatile use
White color for easy readability in any setting
Durable construction, ideal for regular use in optical practices
Compact and lightweight, making it easy to carry or store