{"product_id":"plastic-pd-ruler-5-pack-pupil-distance-measurement-tool","title":"Plastic PD Ruler 5-Pack | Pupil Distance Measurement Tool","description":"\n\u003ch2\u003ePlastic PD Ruler 5-Pack – Pupil Distance Measurement Tool for Eyeglass Dispensing\u003c\/h2\u003e\n\u003cp\u003eGet precise, consistent pupil distance (PD) readings every time with this flexible plastic PD ruler — an essential tool for opticians, eyeglass dispensers, and optical students. Each soft, lightweight ruler measures 17.7 cm and is clearly marked for quick, accurate monocular and binocular PD measurements. The pack of 5 means you'll always have a spare on hand for busy dispensing environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable, flexible plastic — easy to bend for comfortable fitting on different face shapes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 17.7 cm — ideal proportion for accurate PD measurements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Clean white for easy readability of markings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo laser function\u003c\/strong\u003e — simple, straightforward optical measuring tool\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo high-concern chemicals\u003c\/strong\u003e — safe for everyday optical dispensing use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIPX4 rated\u003c\/strong\u003e — splash-resistant for durability in a busy optical environment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack of 5\u003c\/strong\u003e — great value for optical practices, schools, and clinics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 17.7 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 5 pieces per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Monocular PD Ruler \/ Optical Measurement Tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 × Plastic PD Rulers (white, 17.7 cm each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-flat-disc-spacer-beads-gold-silver-jewelry-making\"\u003eStainless Steel Flat Disc Spacer Beads Gold Silver – 20-50pcs\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – 6pcs Jewelry Findings\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.nei.nih.gov\/learn-about-eye-health\" target=\"_blank\" rel=\"noopener\"\u003eNational Eye Institute on eye health\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a PD ruler used for in eyeglass dispensing?\u003c\/h4\u003e\n\u003cp\u003eA: A PD (pupil distance) ruler is an optical measurement tool used by opticians and eyeglass dispensers to measure the distance between the centers of both pupils. This measurement ensures that the optical centers of prescription lenses are correctly aligned with the wearer's eyes for optimal vision clarity and comfort.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this PD ruler suitable for measuring both monocular and binocular pupil distance?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This flexible plastic PD ruler is designed to support both monocular (each eye measured separately) and binocular (total distance between both pupils) measurements, making it a versatile tool for a wide range of eyeglass dispensing scenarios.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many rulers come in this pack?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 5 individual PD rulers, each measuring 17.7 cm in length. This multi-pack is ideal for optical practices, training environments, or anyone who needs a reliable backup on hand.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these rulers reusable and easy to clean?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Made from durable, flexible plastic with an IPX4 splash-resistance rating, these rulers are easy to wipe clean between uses, making them practical for a busy optical dispensing setting.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a PD ruler used for in eyeglass dispensing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A PD (pupil distance) ruler is an optical measurement tool used by opticians and eyeglass dispensers to measure the distance between the centers of both pupils. 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