View cart “6″ Clear PD Ruler – 12 Rulers Pack” has been added to your cart. Previous Product Next Product Prescription Aligner $79.50 Prescription Aligner quantity Add to cart SKU: 6621205 Categories: All Exam Supplies, Best-sellers, Fees products, Products Tags: Exam Supplies, Exam Tools Description Description Verify seg heights and center of vision placements for accuracy and positioning. Easy to use Convenient size Related products Quick View Quick View Kimwipes – Large (Case) $274.95 Add to cart Quick View Quick View Adult’s Slip-In Post-Mydriatic Specs $35.95 Add to cart Quick View Quick View Ishihara’s Tests for Colour Deficiency $368.45 Add to cart