Specification Binding : unbound Brand : JXYQZD BulletPoint1 : Eye Exams Chart: The clarity is high, it will not fade, and the three-dimensional effect will be stronger after turning on the light. Frosted panel enhances three-dimensional effect, tough and not fragile. BulletPoint2 : Clear Visual Effect: High-tech panels are used, which are tough and not easy to break. The fonts on the layout are printed with silk screen technology, and the writing is clear and not easy to fade. BulletPoint3 : LED constant light source: Uniform brightness, energy saving and environmental protection, long service life. Provides consistent, bright illumination to ensure accurate vision testing. BulletPoint4 : Installation Method: The vision chart is designed with a hook, which is convenient to hang on the wall. The decorations on the walls are also nice. You can conveniently have a quick eye exam and take vision tests with ease. BulletPoint5 : Use: Perfect eye care gift for optometrists, ophthalmologists, ophthalmologists, ophthalmic care workers, opticians, glasses manufacturers, etc., very suitable for students, families, offices and schools. Color : One Color ExternallyAssignedProductIdentifier : 6411802010298 ExternallyAssignedProductIdentifier1 : 0680306277797 ExternallyAssignedProductIdentifier2 : 680306277797 Format : large_print ItemName : JXYQZD Letters Eye Chart Visual Acuity Chart for Eye Exams, 2.5-Meter Distance Measurement, Suitable for Clinics, Optical Shops, Schools ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : therapeutic-eye-charts Language : english Manufacturer : JXYQZD MapScale : 1:n MapType : Physical ModelName : JXYQZD ModelNumber : JXYQZD NumberOfBoxes : 1 NumberOfItems : 1 PaperFinish : translucent PaperSize : 10.0 inches x 18.0 inches PartNumber : JXYQZD ProductDescription : Features: - Eye chart is the familiar chart with symbol at the top and progressively smaller letters at the bottom of the chart down. - The eye chart assists in measuring visual acuity at a distance of 2.5 m away from the viewer. - Suit for optical shops, schools, households, hospitals, and eye care centers