32 Lenses Optical Retinoscopy Rack, for Quick Examination of Diopter Spectacles 2 Bars with a Pocket for Optometry, Glasses Testing, Fitting and Optician, Red for Myopia Black for Hyperopia

Product parameters: Total: 32 lenses, 2 bars each for concave (-) and convex (+); red is a minus sign, black is a plus sign Clear aperture: about 24mm (0.945”) Sphere: +/- 0.50, 1.00, 1.50, 2.00, 2.50, 3.00, 3.50, 4.00, 5.00, 6.00, 7.00, 8.00, 9.00, 10.00, 12.00, 15.00 Product weight: 0.31 lbs (141 g) Product dimensions: 11.2 x 1.9 x 0.2 inches (28.5 x 4.8 x 0.5 cm)

• RAPID OPTOMETRY: A pair of 32 eyeglass lens degree with 16 eyeglass lens degree in each bar, MINUS in red and PLUS in black, help quickly check eye diopter.
• LENSES FITTING LIST: Sphere: +/- 0.50, 1.00, 1.50, 2.00, 2.50, 3.00, 3.50, 4.00, 4.5.0, 5.00, 5.5.0, 6.00, 6.5.0, 7.00, 8.00, 12.00, 16.
• COMFORTABLE DESIGN: Non-slip comfortable handle for easy access; a leather pocket included in the package for protection; high quality optical glass for diopter spectacles.
• HIGH QUALITY MATERIA: Environmental protection materials and high quality optical glass, high light transmittance, fine workmanship, the edge will not cut hands.
• PRODUCT PARAMETERS: Clear aperture: Approximately 24mm(0.945”); Product weight: 0.31lbs(141g); Product size: 11.2 x 1.9 x 0.2”(28.5 x 4.8 x 0.5cm).