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

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