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Great quality professional optical flipper optometry plastic flip lens with 5 vision test cards.
Each flip lens comes in 4 piece of lenses with plastic handle. Optical flipper optometry plastic flip lens for near vision amblyopia test adjustable pupillary distance
Color :white and red /Material:plastic
It can be adjustable , the pupillary distance is 40mm-80mm like the picture show
Workmanship: Thick and solid lenses and rim;Each degree shown close to the lens. Size: Bigger size than ordinary flippers enables easier use and more clear measure. Professional technical, precise lens power