{"product_id":"eyeglass-frame-measurement-tester-pupil-height-parallelism-ruler","title":"Eyeglass Frame Tester – Pupil Height \u0026 Parallelism Ruler","description":"\n\u003ch2\u003eEyeglass Frame Measurement Tester – Pupil Height \u0026amp; Parallelism Ruler\u003c\/h2\u003e\n\u003cp\u003eGet precise, professional-grade eyeglass frame measurements right at home or in your optical workshop. This transparent ABS \u003cstrong\u003eFrame Measurement Tester\u003c\/strong\u003e lets you accurately check pupil distance, pupil height, and left-to-right parallelism and symmetry of eyeglass frames — all with a single, easy-to-read instrument.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccurate Scaling:\u003c\/strong\u003e Clearly marked ruler graduations ensure reliable, repeatable measurements every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChecks Parallelism \u0026amp; Symmetry:\u003c\/strong\u003e Quickly verify that eyeglass frames are properly aligned — left and right sides level and symmetrical.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasures Pupil Distance \u0026amp; Height:\u003c\/strong\u003e Ideal for opticians, eyewear technicians, and eyeglass enthusiasts who need precise fitting data.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple to Operate:\u003c\/strong\u003e No complex setup or special training required — just place, align, and read.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable ABS Construction:\u003c\/strong\u003e Made from sturdy, lightweight ABS plastic that stands up to regular professional use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransparent Design:\u003c\/strong\u003e See-through body makes it easy to align the tool directly over any frame style.\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 ABS Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Transparent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Functions:\u003c\/strong\u003e Pupil distance, pupil height, frame parallelism \u0026amp; symmetry\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Required:\u003c\/strong\u003e None — fully manual instrument\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Eyeglass Frame Measurement Tester \/ Parallelism Ruler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to screen calibration and lighting differences, the product color in images may vary slightly from the actual item. Measurement tolerance: ±1–3 mm.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-4pcs-shower-foot-cleaner-foot-washing-brush-remove-dead-skin-with-suction-cup-for-bathing-hotels-slippers-home-bathroom-tools-1\"\u003eShower Foot Cleaner Brush with Suction Cup – 1-4pcs\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10pcs Wooden Handle Nylon Bristle Brush Set – Cleaning \u0026amp; Detailing\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003ePrecision Japanese Double-Edged Hand Saw – SK5 Steel, 6-Inch\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 can the eyeglass frame measurement tester measure?\u003c\/h4\u003e\n\u003cp\u003eA: This frame measurement tester is designed to measure pupil distance, pupil height, and the parallelism and symmetry of eyeglass frames — ensuring a proper, balanced fit for any wearer.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this tool suitable for home use or only for professionals?\u003c\/h4\u003e\n\u003cp\u003eA: The frame measurement ruler is simple enough for home use while precise enough for optical technicians and eyewear professionals. No technical training is required — simply place the transparent ruler over the frame and read the clearly marked scale.\u003c\/p\u003e\n\u003ch4\u003eQ: What material is the measurement ruler made from?\u003c\/h4\u003e\n\u003cp\u003eA: The ruler is made from durable, transparent ABS plastic, making it lightweight, sturdy, and easy to align directly over any style of eyeglass frame.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this tool require batteries or power?\u003c\/h4\u003e\n\u003cp\u003eA: No. This is a fully manual measuring instrument and requires no batteries, charging, or power source of any kind.\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 can the eyeglass frame measurement tester measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This frame measurement tester is designed to measure pupil distance, pupil height, and the parallelism and symmetry of eyeglass frames — ensuring a proper, balanced fit for any wearer.\"}}, {\"@type\": \"Question\", \"name\": \"Is this tool suitable for home use or only for professionals?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The frame measurement ruler is simple enough for home use while precise enough for optical technicians and eyewear professionals. 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